The food chain refers to the transfer of energy from : (1) the interior of the earth to the surface (2) lower to higher latitudes (3) one organism to another (4) organisms of the land to those of the sea by means of river

The food chain refers to the transfer of energy from : (1) the interior of the earth to the surface (2) lower to higher latitudes (3) one organism to another (4) organisms of the land to those of the sea by means of river
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(3) one organism to another Explanation: A food chain is a linear sequence of links in a food web starting from atrophic species that eats no other species in the web and ends at a trophic species that is eaten by no other species in the web. A food chain differs from a food web, because the complex polyphagous network of feeding relations are aggregated into trophic species and the chain only follows linear monophagous pathways. A common metric used to quantify food web trophic structure is food chain length.
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The food chain refers to the transfer of energy from : (1) the interior of the earth to the surface (2) lower to higher latitudes (3) one organism to another (4) organisms of the land to those of the sea by means of river

Description : The food chain refers to the transfer of energy from : (1) the interior of the earth to the surface (2) lower to higher latitudes (3) one organism to another (4) organisms of the land to those of the sea by means of river

Last Answer : one organism to another

Biosphere refers to – (1) the area of the land inhabited by living organism (2) the part of ocean inhabited by plants and animals (3) the portion of the earth, including the oceans, the land, the soil and the atmosphere inhabited by living organisms (4) the atmosphere surrounding the living organisms

Description : Biosphere refers to - (1) the area of the land inhabited by living organism (2) the part of ocean inhabited by plants and animals (3) the portion of the earth, including the oceans ... land, the soil and the atmosphere inhabited by living organisms (4) the atmosphere surrounding the living organisms

Last Answer : (3) the portion of the earth, including the oceans, the land, the soil and the atmosphere inhabited by living organisms Explanation: The biosphere is the global ecological system integrating all living beings ... up of the parts of Earth where life exists. It is the worldwide sum of all ecosystems.

What are the advantages of a human or another omnivore eating organisms that are lower rather than higher in the food chain?

Description : What are the advantages of a human or another omnivore eating organisms that are lower rather than higher in the food chain?

Last Answer : What is the answer ?

Biosphere refers to (1) the area of the land inhabited by living organism (2) the part of ocean inhabited by plants and animals (3) the portion of the earth, including the oceans, the land, the soil and the atmosphere inhabited by living organisms (4) the atmosphere surrounding the living organisms

Description : Biosphere refers to (1) the area of the land inhabited by living organism (2) the part of ocean inhabited by plants and animals (3) the portion of the earth, including the oceans, the land, the soil and the atmosphere inhabited by living organisms (4) the atmosphere surrounding the living organisms

Last Answer : the portion of the earth, including the oceans, the land, the soil and the atmosphere inhabited by living organisms

India's latitudinal and longitudinal extent measured in degrees are almost the same, but its north-south extent measured in km is greater than its east-west extent. This is due to the fact that (a) longitudes are not parallel lines (b) the distance between latitudes remains the same but the distance between longitudes is greatest at the Equator and nil at the poles where all longitudes join (c) all longitudes with their opposites form great circles (d) the earth is not a perfect sphere

Description : India's latitudinal and longitudinal extent measured in degrees are almost the same, but its north-south extent measured in km is greater than its east-west extent. This is due to the fact that (a) ... (c) all longitudes with their opposites form great circles (d) the earth is not a perfect sphere

Last Answer : Ans: (b)

The sunlight is available 24 hours on the longest day at which of the following latitudes of the earth? (1) 49° (2) 66° (3) 63° (4) 69°51'

Description : The sunlight is available 24 hours on the longest day at which of the following latitudes of the earth? (1) 49° (2) 66° (3) 63° (4) 69°51'

Last Answer : (2) 66° Explanation: During the June solstice the Earth's North Pole is tilted 23.5 degrees towards the Sun relative to the circle of illumination. This phenomenon keeps all places above latitude of ... N in 24 hours of sunlight, while locations below latitude of 66.5 degrees are in darkness.

'Hinterland' refers to: (a) continental shelf in the sea from which oil can be extracted (b) natural harbour used for international trade (c) land region extending from a sea port (d) abandoned sea port where trade was carried out initially

Description : 'Hinterland' refers to: (a) continental shelf in the sea from which oil can be extracted (b) natural harbour used for international trade (c) land region extending from a sea port (d) abandoned sea port where trade was carried out initially

Last Answer : Ans: (c)

Consider the following statements: The genetic code said to be degenerate and universal which means that, (1) Amino afids may have more than one codon (2) All amino acids have mo than one codon (3) Codons are common for higher and lower organism (4) Codons are not found in bacteria

Description : Consider the following statements: The genetic code said to be degenerate and universal which means that, (1) Amino afids may have more than one codon (2) All amino acids have mo than one codon (3) Codons are common for higher and lower organism (4) Codons are not found in bacteria

Last Answer : Ans. ((d))

What is meant by Isthmus? (1) Mouth of a river where it joins the sea (2) Narrow strip of water dividing two land masses (3) Narrow strip of land dividing two oceans (4) Narrow strip of land connecting two large areas of land

Description : What is meant by Isthmus? (1) Mouth of a river where it joins the sea (2) Narrow strip of water dividing two land masses (3) Narrow strip of land dividing two oceans (4) Narrow strip of land connecting two large areas of land

Last Answer : (3) Narrow strip of land dividing two oceans Explanation: An isthmus is a narrow strip of land connecting two larger land areas, usually with water on either side, The Panama Canal crosses the ... western side of an isthmus formed by the Sinai Peninsula. Strait is the sea counterpart of isthmus.

Mumbai High Oil Fields are located on the – (1) Continental Shelf of the Arabian Sea (2) West coastal plain (3) Western Ghats (4) Interior part of the Deccan

Description : Mumbai High Oil Fields are located on the – (1) Continental Shelf of the Arabian Sea (2) West coastal plain (3) Western Ghats (4) Interior part of the Deccan

Last Answer : (1) Continental Shelf of the Arabian Sea Explanation: Mumbai High Oil Fields are located on the Continental Shelf of the Arabian Sea.

A metagenome refers to a. A Large Genome In An Organism. b. The Collective Genomes Of Many Organisms. c. The Genome Of A Metazoan. d. Two Identical Genomes In Different Species.

Description : A metagenome refers to a. A Large Genome In An Organism. b. The Collective Genomes Of Many Organisms. c. The Genome Of A Metazoan. d. Two Identical Genomes In Different Species.

Last Answer : b. The Collective Genomes Of Many Organisms.

Assertion (A) : In a food chain members of successive higher levels are fewer in number. Reason (R ): Number of organisms at any trophic level depends

Description : Assertion (A) : In a food chain members of successive higher levels are fewer in number. Reason (R ): Number of organisms at any trophic level depends

Last Answer : Assertion (A) : In a food chain members of successive higher levels are fewer in number. Reason (R ... . D. If both assertion and reason are false.

Assertion (A) : In a food chain members of successive higher levels are fewer in number. Reason (R ): Number of organisms at any trophic level depends

Description : Assertion (A) : In a food chain members of successive higher levels are fewer in number. Reason (R ): Number of organisms at any trophic level depends

Last Answer : Assertion (A) : In a food chain members of successive higher levels are fewer in number. Reason (R ... . D. If both assertion and reason are false.

The Correct Statements with reference to single called organisms are (i) Complex substances are not broken down in to simpler substances. (ii) Simple diffusion is sufficient to meet the requirement of exchange of gases. (iii) Specialized tissues perform different functions in the organism. (iv) Entire surface of the organism is in contact with the environment for taking in food. (a) (i) and (iii) (b) (ii) and (iii) (c) (ii) and (iv) (d) (i) and (iv)

Description : The Correct Statements with reference to single called organisms are (i) Complex substances are not broken down in to simpler substances. (ii) Simple diffusion is sufficient to meet the requirement of exchange of gases. (iii) Specialized ... b) (ii) and (iii) (c) (ii) and (iv) (d) (i) and (iv)

Last Answer : Answer: (c)

Benthoic animals are those, which (a) are submerged in area (b) float on the sea surface(c) are deep dweller in sea (d) are floating (free) organisms.

Description : Benthoic animals are those, which (a) are submerged in area (b) float on the sea surface (c) are deep dweller in sea (d) are floating (free) organisms.

Last Answer : (c) are deep dweller in sea

Marmagao port is linked to the interior by means of cheap transport on rivers (a) Zuari and Mandovi (b) Bhima and Kalinadi (c) Varada and Malaprabha (d) Gangawali and Savitri

Description : Marmagao port is linked to the interior by means of cheap transport on rivers (a) Zuari and Mandovi (b) Bhima and Kalinadi (c) Varada and Malaprabha (d) Gangawali and Savitri

Last Answer : Ans: (a)

The latitudes that pass through Sikkim also pass through [IAS 2010] (a) Rajasthan (b) Punjab (c) Himachal Pradesh (d) Jammu & Kashmir

Description : The latitudes that pass through Sikkim also pass through [IAS 2010] (a) Rajasthan (b) Punjab (c) Himachal Pradesh (d) Jammu & Kashmir

Last Answer : Ans: (a)

Which of the following latitudes passes through India? [RRB 1994] (a) Equator (b) Arctic Circle (c) Tropic of Capricorn (d) Tropic of Cancer

Description : Which of the following latitudes passes through India? [RRB 1994] (a) Equator (b) Arctic Circle (c) Tropic of Capricorn (d) Tropic of Cancer

Last Answer : Ans: (d)

The country located between 8°N and 37°N latitudes is - (1) Bangladesh (2) India (3) China (4) Pakistan

Description : The country located between 8°N and 37°N latitudes is - (1) Bangladesh (2) India (3) China (4) Pakistan

Last Answer : (3) China Explanation: India lies to the north of the equator between 6° 44’ and 35° 30' north latitude and 68° 7' and 97° 25' east longitude.

Subtropical high pressure belts are otherwise called – (1) Furious fifties (2) Screeching sixties (3) Horse latitudes (4) Roaring forties

Description : Subtropical high pressure belts are otherwise called – (1) Furious fifties (2) Screeching sixties (3) Horse latitudes (4) Roaring forties

Last Answer : (3) Horse latitudes Explanation: The areas of sub-tropical high pressure are located between latitudes 250 and 350 N and S. These highpressure zones are called the horse-latitudes. It is an area which receives little precipitation and has variable winds mixed with calm

The word Biosphere refers to : (1) Zone of soil, water and air around earth capable of supporting the flora and fauna. (2) Part of earth surface which can support the flora (3) Parts of air around earth a where life can exist (4) Zone of water on earth which can support life.

Description : The word Biosphere refers to : (1) Zone of soil, water and air around earth capable of supporting the flora and fauna. (2) Part of earth surface which can support the flora (3) Parts of air around earth a where life can exist (4) Zone of water on earth which can support life.

Last Answer : (1) Zone of soil, water and air around earth capable of supporting the flora and fauna. Explanation: Biosphere refers to that portion of the Earth which is occupied by the various forms of life, in addition to the three main physical zones, the Lithosphere, the Hydrosphere and the Atmosphere.

Water gets evaporated from water surfaces and land surfaces, get converted into water drops at lower temperatures, flows over ground surface and finally meets its source, i.e. lake, sea, etc. This entire process is generally known as (A) Hydrological cycle (B) Water cycle (C) Evaporation and precipitation cycle (D) All the above

Description : Water gets evaporated from water surfaces and land surfaces, get converted into water drops at lower temperatures, flows over ground surface and finally meets its source, i.e. lake, sea, etc. This ... Hydrological cycle (B) Water cycle (C) Evaporation and precipitation cycle (D) All the above

Last Answer : (D) All the above

The concentration of DDT in the food chain, from lower to higher trophic levels:

Description : The concentration of DDT in the food chain, from lower to higher trophic levels:

Last Answer : The concentration of DDT in the food chain, from lower to higher trophic levels: A. ... Decreases C. Increases or decreases D. Remains constant

The concentration of DDT in the food chain, from lower to higher trophic levels:

Description : The concentration of DDT in the food chain, from lower to higher trophic levels:

Last Answer : The concentration of DDT in the food chain, from lower to higher trophic levels: A. Remain same B. Decreases in glaciers C. Increases D. Unpredictable

The essential amino acids (A) Must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids (B) Must be supplied in the diet because the human has an impaired ability to synthesize the carbon chain of the corresponding ketoacids (C) Are identical in all species studied (D) Are defined as those amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements

Description : The essential amino acids (A) Must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids (B) Must be supplied in the diet because the ... amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements

Last Answer : Answer : B

The temperature of water at the bottom of a large waterfall is higher than that of the water at the top, because – (1) the falling water absorbs heat from the Sun. (2) the water at the bottom has greater potential energy. (3) the kinetic energy of the falling water is converted into heat. (4) rocks on the bed of the river give out heat.

Description : The temperature of water at the bottom of a large waterfall is higher than that of the water at the top, because - (1) the falling water absorbs heat from the Sun. (2) the water at the bottom has ... of the falling water is converted into heat. (4) rocks on the bed of the river give out heat.

Last Answer : (3) the kinetic energy of the falling water is converted into heat. Explanation: The water gains kinetic energy as it falls down and loses its potential energy. Assuming no other losses, part of the kinetic energy gain of water is converted into heat, raising the temperature of water.

Pick out the wrong statement. (A) Cellulose acetate membranes are used in dialysis process (B) Elutriation process refers to when the soluble material is largely concentrated on the surface of an insoluble solid and is simply washed off by the solvent (C) 'Cascade' means a group of stages interconnected so that various streamflow from one to another(D) Zirconia probe is used for the humidity measurement

Description : Pick out the wrong statement. (A) Cellulose acetate membranes are used in dialysis process (B) Elutriation process refers to when the soluble material is largely concentrated on the surface of an ... that various streamflow from one to another (D) Zirconia probe is used for the humidity measurement

Last Answer : (D) Zirconia probe is used for the humidity measurement

An antibiotic is - (1) achemical synthesized by a human cell against a microorganism (2) a chemical synthesised by amicro-organism against another micro-organisms (3) a substance produced by blood cells against bacteria (4) a substance produced by blood cells against infection.

Description : An antibiotic is - (1) achemical synthesized by a human cell against a microorganism (2) a chemical synthesised by amicro-organism against another micro-organisms (3) a substance produced by blood cells against bacteria (4) a substance produced by blood cells against infection.

Last Answer : (2) a chemical synthesised by amicro-organism against another microorganisms Explanation: An antibacterial is an agent that inhibits bacterial growth or kills bacteria. The term is often used ... by a microorganism that is antagonistic to the growth of other microorganisms in high dilution.

An antibiotic is (1) a chemical synthesized by a human cell against a microorganism (2) a chemical synthesised by a micro-organism against another micro-organisms (3) a substance produced by blood cells against bacteria (4) a substance produced by blood cells against infection.

Description : An antibiotic is (1) a chemical synthesized by a human cell against a microorganism (2) a chemical synthesised by a micro-organism against another micro-organisms (3) a substance produced by blood cells against bacteria (4) a substance produced by blood cells against infection.

Last Answer : a chemical synthesised by a micro-organism against another micro-organisms

In which of the following we can have more than one source of organisms for energy a) Food chain c) Food circle b) Food web d) Food rotation

Description : In which of the following we can have more than one source of organisms for energy a) Food chain c) Food circle b) Food web d) Food rotation

Last Answer : FOOD CHAIN

Crop rotation refers to : (a) method of farming without irrigation in an area of limited rainfall (b) farming done on the same land by different people turn-wise (c) growing same crop in alternate years (d) growing different crops in succession

Description : Crop rotation refers to : (a) method of farming without irrigation in an area of limited rainfall (b) farming done on the same land by different people turn-wise (c) growing same crop in alternate years (d) growing different crops in succession

Last Answer : Ans: (d)

Which of the following refers to the white salt which covers the land in some areas during dry season? (1) usar (2) reh (3) erg (4) reg

Description : Which of the following refers to the white salt which covers the land in some areas during dry season? (1) usar (2) reh (3) erg (4) reg

Last Answer : (2) reh Explanation: Reh refers to a mixture of soluble sodium salts appearing as efflorescence on the ground in arid or semiarid regions in India. It covers the land in the form of a white layer. It is also known as Kallar.

Overall rate of reaction in a heterogeneous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it doesnot entail a chain mechanism.(A) Proportional to(B) Independent of(C) Inversely proportional to(D) Proportional to the square o

Description : Overall rate of reaction in a heterogeneous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of ... to (B) Independent of (C) Inversely proportional to (D) Proportional to the square o

Last Answer : (A) Proportional to

What are Surface winds that blow from the horse latitudes to the equator called?

Description : What are Surface winds that blow from the horse latitudes to the equator called?

Last Answer : What is the answer ?

What refers to the transfer of energy between a solid surface and the adjacent fluid that is in motion?  A. Conduction  B. Convection  C. Radiation  D. Electrification

Description : What refers to the transfer of energy between a solid surface and the adjacent fluid that is in motion?  A. Conduction  B. Convection  C. Radiation  D. Electrification

Last Answer : Convection

The second law of thermodynamics states that (A) The energy change of a system undergoing any reversible process is zero (B) It is not possible to transfer heat from a lower temperature to a higher temperature (C) The total energy of system and surrounding remains the same (D) None of the above

Description : The second law of thermodynamics states that (A) The energy change of a system undergoing any reversible process is zero (B) It is not possible to transfer heat from a lower temperature to a higher temperature (C) The total energy of system and surrounding remains the same (D) None of the above

Last Answer : (D) None of the above

The rate of energy transfer from a higher temperature to a lower temperature is measured in a) kcal b) Watt c) Watts per second d) none of the above.

Description : The rate of energy transfer from a higher temperature to a lower temperature is measured in a) kcal b) Watt c) Watts per second d) none of the above.

Last Answer : b) Watt

How many latitudes and longitudes are there on Earth?

Description : How many latitudes and longitudes are there on Earth?

Last Answer : That's exactly the same as asking "How many different lengths are there on a piece of rope ?" There's no limit to the possible number of different measurements. If you name two different measurements, ... start, all the way around the Earth to the place you started from. Just like any other circle.

The sunlight is available 24 hours on the longest day at which of the following latitudes of the earth ? (1) 49° (2) 66½° (3) 63° (4) 69°51'

Description : The sunlight is available 24 hours on the longest day at which of the following latitudes of the earth ? (1) 49° (2) 66½° (3) 63° (4) 69°51'

Last Answer : 66½°

Which of the following groups of organisms digest their food before it actually enters the organism? (1) Bacteria and Protozoa (2) Bacteria and Fungi (3) Fungi and Protozoa (4) Mucor and Rhizopus

Description : Which of the following groups of organisms digest their food before it actually enters the organism? (1) Bacteria and Protozoa (2) Bacteria and Fungi (3) Fungi and Protozoa (4) Mucor and Rhizopus

Last Answer : Bacteria and Fungi 

The winter rain in Chennai is caused by (a) South-West Monsoons (b) North-East Monsoons (c) Intense Land and Sea Breezes (d) Cyclonic winds in the Bay of Bengal

Description : The winter rain in Chennai is caused by (a) South-West Monsoons (b) North-East Monsoons (c) Intense Land and Sea Breezes (d) Cyclonic winds in the Bay of Bengal

Last Answer : Ans: (b)

Indian monsoon is marked by seasonal shift caused by: [Teachers' Exam 1994] (a) differential heating of land and sea (b) cold winds of Central Asia (c) great uniformity of temperature (d) None of these

Description : Indian monsoon is marked by seasonal shift caused by: [Teachers' Exam 1994] (a) differential heating of land and sea (b) cold winds of Central Asia (c) great uniformity of temperature (d) None of these

Last Answer : Ans: (a)

Japan is called the ‘Land of the rising sun’ because - (1) Sun rises there as soon as it sets (2) Sun always remains in the eastern part of the sky throughout the day in Japan (3) Japan being the Eastern most country in the world, it has the earliest sunrise (4) The rays of the sun get reflected from the waters of the sea and make the sunrise beautiful in Japan

Description : Japan is called the Land of the rising sun' because - (1) Sun rises there as soon as it sets (2) Sun always remains in the eastern part of the sky throughout the day in Japan (3) Japan being ... (4) The rays of the sun get reflected from the waters of the sea and make the sunrise beautiful in Japan

Last Answer : (3) Japan being the Eastern most country in the world, it has the earliest sunrise Explanation: Japan is an archipelago, or a group of islands, about 100 miles east of the Asian main land in the Far East. ... the others get the rays if the sun. That's why Japan is called the land of the rising sun.

Which one of the following is not the example of planetary winds? (1) Monsoon (2) Trade wind (3) Land and sea breezes (4) Chinook

Description : Which one of the following is not the example of planetary winds? (1) Monsoon (2) Trade wind (3) Land and sea breezes (4) Chinook

Last Answer : (4) Chinook Explanation: "Chinook", originally meant a warming wind from the ocean into the interior regions of the Pacific Northwest (the Chinook people lived near the ocean, along the lower Columbia River) ... 20°C (50- 68°F) for a few hours or days, then temperatures plummet to their base level.

Land and sea-breezes occur due to : (1) Conduction (2) Convection (3) Radiation (4) Tides

Description : Land and sea-breezes occur due to : (1) Conduction (2) Convection (3) Radiation (4) Tides

Last Answer : (2) Convection Explanation: During the day, the sun warming the land also warms the air. Since land heats up quicker than water does, the air over land gets warmer than the air over the water. ... Breeze. Reversely, at night the land cools down faster than the water does, and creates a Land Breeze.

Though there is no single theory which can explain the origin of south west monsoon, however it is believed that the main mechanism is the differential heating of land and sea during: (1) Winter months (2) Summer months (3) Cyclonic storms (4) South-west trade wind flow

Description : Though there is no single theory which can explain the origin of south west monsoon, however it is believed that the main mechanism is the differential heating of land and sea during: (1) Winter months (2) Summer months (3) Cyclonic storms (4) South-west trade wind flow

Last Answer : (2) Summer months Explanation: According to the thermal theory, during the hot subtropical summers, the massive landmass of the Indian Peninsula heats up at a different rate than the ... relief, cooling adiabatically and leading to Orographic rains, better known as the southwest monsoon.

The river which is not West-flowing towards the Arabian Sea is – (1) Narmada (2) Tapi (3) Periyar (4) Kaveri

Description : The river which is not West-flowing towards the Arabian Sea is – (1) Narmada (2) Tapi (3) Periyar (4) Kaveri

Last Answer : (4) Kaveri Explanation: The Kaveri, also spelled Cauvery in English, is a large Indian river. The origin of the river is traditionally placed at Talakaveri, Kodagu in the Western ... Deccan plateau through the southeastern lowlands, emptying into the Bay of Bengal through two principal mouths

Pick out the wrong statement. (A) Higher specific gravity of petroleum products means higher C/H ratio (B) Aromatics have lower specific gravity than corresponding paraffins (C) Hydrocarbons of low specific gravity (e.g., paraffins) possess the maximum thermal energy per unit volume (D) Hydrocarbons of high specific gravity (e.g., aromatics) possess the maximum thermal energy per unit weight

Description : Pick out the wrong statement. (A) Higher specific gravity of petroleum products means higher C/H ratio (B) Aromatics have lower specific gravity than corresponding paraffins (C) Hydrocarbons of low ... of high specific gravity (e.g., aromatics) possess the maximum thermal energy per unit weight

Last Answer : (B) Aromatics have lower specific gravity than corresponding paraffins

Choose the correct statement. (A) Octane number of i-octane is zero (B) Octane number of paraffins increases with increasing number of carbon atoms (C) Branched chain paraffins have higher octane number than straight chain paraffins with same number of carbon atoms (D) The aromatics have lower octane number than naphthenes with same number of carbon atoms

Description : Choose the correct statement. (A) Octane number of i-octane is zero (B) Octane number of paraffins increases with increasing number of carbon atoms (C) Branched chain paraffins have higher octane ... atoms (D) The aromatics have lower octane number than naphthenes with same number of carbon atoms

Last Answer : (A) Octane number of i-octane is zero