Man can maintain an ecological balance in the biosphere by (1) deforestation (2) developing new breeds of cultivated plants and domesticated animals (3) using insecticides and pesticides (4) understanding the delicate balance in the relative number of organisms

Man can maintain an ecological balance in the biosphere by (1) deforestation (2) developing new breeds of cultivated plants and domesticated animals (3) using insecticides and pesticides (4) understanding the delicate balance in the relative number of organisms
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understanding the delicate balance in the relative number of organisms
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Man can maintain an ecological balance in the biosphere by- (1) deforestation (2) developing new breeds of cultivated plants and domesticated animals (3) using insecticides and pesticides (4) understanding the delicate balance in the relative number of organisms

Description : Man can maintain an ecological balance in the biosphere by- (1) deforestation (2) developing new breeds of cultivated plants and domesticated animals (3) using insecticides and pesticides (4) understanding the delicate balance in the relative number of organisms

Last Answer : (4) understanding the delicate balance in the relative number of organisms Explanation: Ecological balance is a state of dynamic equilibrium within a community of organisms in which genetic ... this balance, the delicate balance between the organisms constituting and ecosystem should be understood.

Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action? (1) Darwin’s Finches of Galapagos islands. (2) Herbicide resistant weeds. (3) Drug resistant eukaryotes. (4) Man-created breeds of domesticated animals like dogs. (a) only (1) (b) (1) and (3) (c) (2), (3) and (4) (d) only (4)

Description : Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action? (1) Darwin's Finches of Galapagos islands. (2) Herbicide resistant weeds. (3) Drug ... ) (b) (1) and (3) (c) (2), (3) and (4) (d) only (4)

Last Answer : (c) (2), (3) and (4)

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

Salination of soil is caused by (1) pesticides (2) soil erosion (3) excess irrigation (4) crop rotation

Description : Salination of soil is caused by (1) pesticides (2) soil erosion (3) excess irrigation (4) crop rotation

Last Answer : excess irrigation

Fertilizers, pesticides and insecticides may causes

Description : Fertilizers, pesticides and insecticides may causes

Last Answer : Fertilizers, pesticides and insecticides may causes A. air pollution B. water pollution C. Both A and B D. None of the above

Highly specialized form of agriculture in which crops like coffee, tea and rubber are cultivated refer to (1) multiple cropping (2) plantation agriculture (3) terrace farming (4) extensive farming

Description : Highly specialized form of agriculture in which crops like coffee, tea and rubber are cultivated refer to (1) multiple cropping (2) plantation agriculture (3) terrace farming (4) extensive farming

Last Answer : plantation agriculture

The land which is not cultivated every year though it is suitable for cultivation : (1) Waste land (2) Pasture land (3) Fallow land (4) Cultivable waste land

Description : The land which is not cultivated every year though it is suitable for cultivation : (1) Waste land (2) Pasture land (3) Fallow land (4) Cultivable waste land

Last Answer : Pasture land

Which one of the following does not cause soil erosion ? (1) Deflation (2) Deforestation (3) Weathering (4) Overcropping

Description : Which one of the following does not cause soil erosion ? (1) Deflation (2) Deforestation (3) Weathering (4) Overcropping

Last Answer : Deflation

The rate of deforestation is high in (1) Tropical zone (2) Desert areas (3) Temperate zone (4) Boreal forest

Description : The rate of deforestation is high in (1) Tropical zone (2) Desert areas (3) Temperate zone (4) Boreal forest

Last Answer : Temperate zone

The main cause of recurring flood is (1) Soil erosion (2) Deforestation (3) Silting of river beds (4) All of the above

Description : The main cause of recurring flood is (1) Soil erosion (2) Deforestation (3) Silting of river beds (4) All of the above

Last Answer : All of the above

The space retaining life in any form is called (1) Biomass (2) Biosphere (3) Lithosphere (4) Hydrosphere

Description : The space retaining life in any form is called (1) Biomass (2) Biosphere (3) Lithosphere (4) Hydrosphere

Last Answer : Biosphere

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 : Zone of soil, water and air around earth capable of supporting the flora and fauna. 

All the ecosystems taken together in a geographical area form a bigger unit called: (1) biosphere (2) territory (3) biome (4) community

Description : All the ecosystems taken together in a geographical area form a bigger unit called: (1) biosphere (2) territory (3) biome (4) community

Last Answer : biome

The largest ecosystem of the Earth is (1) Biome (2)Hydrosphere (3) Lithosphere (4)Biosphere

Description : The largest ecosystem of the Earth is (1) Biome (2)Hydrosphere (3) Lithosphere (4)Biosphere

Last Answer : Biome

The sphere of living matter together with water, air and soil on the surface of the earth is known as (1) Lithosphere (2) Biosphere (3) Hydrosphere (4) Atmosphere

Description : The sphere of living matter together with water, air and soil on the surface of the earth is known as (1) Lithosphere (2) Biosphere (3) Hydrosphere (4) Atmosphere

Last Answer : Biosphere

An ecological system is a (1) Biological system (2) Biogeochemical system (3) Physicochemical system (4) Bioecological system

Description : An ecological system is a (1) Biological system (2) Biogeochemical system (3) Physicochemical system (4) Bioecological system

Last Answer :  Biological system

Which one of the following statements on biosphere reserves is not correct? [CDS 2010] (a) In 1973, UNESCO launched a worldwide programme on man and biosphere (b) Biosphere reserves promote research on ecological conservation (c) Nanda Devi Biosphere Reserve is located in Madhya Pradesh (d) Biosphere reserves are multipurpose protected areas to preserve the genetic diversity in ecosystems

Description : Which one of the following statements on biosphere reserves is not correct? [CDS 2010] (a) In 1973, UNESCO launched a worldwide programme on man and biosphere (b) Biosphere reserves ... Pradesh (d) Biosphere reserves are multipurpose protected areas to preserve the genetic diversity in ecosystems

Last Answer : Ans: (c)

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 is the term that describes the ability of organisms to maintain a stable internal state? a. Metabolism b. Homeostasis c. Biosphere d. Ecotype

Description : What is the term that describes the ability of organisms to maintain a stable internal state? a. Metabolism b. Homeostasis c. Biosphere d. Ecotype

Last Answer : b. Homeostasis

What should be the area under forest cover to maintain ecological balance? -Geography

Description : What should be the area under forest cover to maintain ecological balance? -Geography

Last Answer : Ecological balance refers to the balance of ecosystems which is maintained by the abundance of forest cover,vegetation, wetlands, rivers and streams and the harmony between the living organisms ... the natural balance. The percentage of forest cover which maintains ecological balance is 33%.

The minimum fore at cover necessary to maintain ecological balance is (a) 50% of the total land area (b) 40% of the total land area (c) 33% of the total land area (d) 25% of the total land area

Description : The minimum fore at cover necessary to maintain ecological balance is (a) 50% of the total land area (b) 40% of the total land area (c) 33% of the total land area (d) 25% of the total land area

Last Answer : Ans: (c)

What should be the proportion of forest cover for India to maintain her ecological balance? (1) 11.1 percent (2) 22.2 percent (3) 33.3 percent (4) 44.4 percent

Description : What should be the proportion of forest cover for India to maintain her ecological balance? (1) 11.1 percent (2) 22.2 percent (3) 33.3 percent (4) 44.4 percent

Last Answer : (3) 33.3 percent Explanation: The minimum area of forests to maintain a good ecological balance has been regarded to be 33%. India lags on this front. The Green India campaign has been ... the Prime Minister for the afforestation of 6 million hectares. The current area under forests is 23%.

What is the minimum forest cover to maintain ecological balance?

Description : What is the minimum forest cover to maintain ecological balance?

Last Answer : 33%

Which of the following agricultural practices have been primarily responsible for pollution of our water resources ? A. Use of live-stock manure B. Use of chemical fertilisers C. Excessive use of chemical pesticides D. Deforestation (1) B and C (2) A, C and D (3) A and B (4) A, B and D

Description : Which of the following agricultural practices have been primarily responsible for pollution of our water resources ? A. Use of live-stock manure B. Use of chemical fertilisers C. Excessive use of chemical pesticides D. Deforestation (1) B and C (2) A, C and D (3) A and B (4) A, B and D

Last Answer : B and C

What makes an ecosystem ? (1) A living community and its environment (2) All the plants and animals of an area (3) Carnivores and herbivores of an area (4) Producers, consumers and decomposers in a particular locality

Description : What makes an ecosystem ? (1) A living community and its environment (2) All the plants and animals of an area (3) Carnivores and herbivores of an area (4) Producers, consumers and decomposers in a particular locality 

Last Answer : A living community and its environment

An ecosystem consists of : (1) producers, consumers and decomposers in a particular area. (2) all the plants and animals of an area. (3) a living community and its environment. (4) carnivorous and herbivorous of an area

Description : An ecosystem consists of : (1) producers, consumers and decomposers in a particular area. (2) all the plants and animals of an area. (3) a living community and its environment. (4) carnivorous and herbivorous of an area

Last Answer : a living community and its environment.

Deforestation results in : 1. flora destruction 2. fauna destruction 3. ecological disbalance (a) 2 and 3 (b) 1, 2 and 3 (c) 1 only (d) 1 and 3

Description : Deforestation results in : 1. flora destruction 2. fauna destruction 3. ecological disbalance (a) 2 and 3 (b) 1, 2 and 3 (c) 1 only (d) 1 and 3

Last Answer : Ans: (b)

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

There is a need to keep larger area under forests for : (1) absorption of carbon dioxide (2) protecting wildlife (3) raising precipitation (4) geological balance

Description : There is a need to keep larger area under forests for : (1) absorption of carbon dioxide (2) protecting wildlife (3) raising precipitation (4) geological balance

Last Answer :  absorption of carbon dioxide

In your opinion, which is the most effective way to conserve the plant diversity of an area? (a) By tissue culture method (b) By creating biosphere reserve (c) By creating botanical garden (d) By developing seed bank

Description : In your opinion, which is the most effective way to conserve the plant diversity of an area? (a) By tissue culture method (b) By creating biosphere reserve (c) By creating botanical garden (d) By developing seed bank

Last Answer : (b) By creating biosphere reserve

The fur of the animals living in colder regions (1) protects them from water (2) traps the air and keeps them warm (3) protects them from enemies (4) makes them appear beautiful

Description : The fur of the animals living in colder regions (1) protects them from water (2) traps the air and keeps them warm (3) protects them from enemies (4) makes them appear beautiful

Last Answer :  traps the air and keeps them warm

The presence of a lion in the forest is essential in order to (1) keep the trees safe from felling (2) add beauty in the forests (3) save the pastures from being overgrazed (4) keep other carnivorous animals away

Description : The presence of a lion in the forest is essential in order to (1) keep the trees safe from felling (2) add beauty in the forests (3) save the pastures from being overgrazed (4) keep other carnivorous animals away

Last Answer : save the pastures from being overgrazed

The remedies to soil erosion are : I. Contour bunding II. Regulation of land use III. Cutting of trees IV. Allowing grazing of animals (1) I, III (2) I, II (3) III, IV (4) II, III

Description : The remedies to soil erosion are : I. Contour bunding II. Regulation of land use III. Cutting of trees IV. Allowing grazing of animals (1) I, III (2) I, II (3) III, IV (4) II, III

Last Answer :  I, II

Sea water is saltier than rain water because (1) rivers wash away salts from earth and pour them into the sea (2) sea beds have salt producing mines (3) sea animals are salt producing (4) the air around the sea is saltish

Description : Sea water is saltier than rain water because (1) rivers wash away salts from earth and pour them into the sea (2) sea beds have salt producing mines (3) sea animals are salt producing (4) the air around the sea is saltish 

Last Answer : rivers wash away salts from earth and pour them into the sea

Pollution caused by persistent pesticides is relatively more dangerous to which type of organisms?

Description : Pollution caused by persistent pesticides is relatively more dangerous to which type of organisms?

Last Answer : Pollution caused by persistent pesticides is relatively more dangerous to which type of organisms? A. ... C. First level carnivores D. Top carnivores.

Which of the following listed is not a feature of organic farming ? (1) The non-use of chemical fertilizers and pesticides (2) Soil is nurtured for furture use by maintaining micro-organisms (3) Use of synthetic fertilizers (4) Very less energy consumption

Description : Which of the following listed is not a feature of organic farming ? (1) The non-use of chemical fertilizers and pesticides (2) Soil is nurtured for furture use by maintaining micro-organisms (3) Use of synthetic fertilizers (4) Very less energy consumption

Last Answer : Use of synthetic fertilizers

If you were to have two different species (normally non-domesticated animals) as pets that are tame and docile towards you and each other, which two would you like to keep?

Description : If you were to have two different species (normally non-domesticated animals) as pets that are tame and docile towards you and each other, which two would you like to keep?

Last Answer : An elephant and an ocelot. :3

What animals, indigenous to the Americas, could have been domesticated and put to work by the Native Americans, the way the Europeans domesticated horses and cattle, camels, etc.?

Description : What animals, indigenous to the Americas, could have been domesticated and put to work by the Native Americans, the way the Europeans domesticated horses and cattle, camels, etc.?

Last Answer : Bats. I wouldn’t screw with them if they had bats.

What would happen in the world where we've successfully domesticated all wild animals?

Description : What would happen in the world where we've successfully domesticated all wild animals?

Last Answer : Black Panther I think they are gorgeous animals. Though I would hate to see wild animals not be wild anymore…even my MIL would be boring to be around if she were tamed.

What domesticated animals did the ancient Babylonians have?

Description : What domesticated animals did the ancient Babylonians have?

Last Answer : Wild animals roamed the jungles of vegetation along the riverbanks or lived in the deserts to the west. They included lions, leopards, wild cattle, boar, gazelle, ostrich, vultures and eagles.

What are the strengths and weaknesses of an ecological perspective in understanding life?

Description : What are the strengths and weaknesses of an ecological perspective in understanding life? 

Last Answer : The great strength of ecology is that it deals with living things in terms of their natural surroundings rather than in artificial isolation. Other branches of biology focus upon particular aspects of ... has been achieved, particularly where clear boundaries to a habitat exist, such as on islands 

Maps on large scale, representing both natural and man-made features are called (1) Wall maps (2) Topographic maps (3) Thematic maps (4) Atlas maps

Description : Maps on large scale, representing both natural and man-made features are called (1) Wall maps (2) Topographic maps (3) Thematic maps (4) Atlas maps

Last Answer : Topographic maps

Man first domesticated which animal? -General Knowledge

Description : Man first domesticated which animal? -General Knowledge

Last Answer : answer:

Man first domesticated which animal? -General Knowledge

Description : Man first domesticated which animal? -General Knowledge

Last Answer : answer:

The first domesticated animal by primitive man was (a) cat (b) cow (c) dog (d) horse.

Description : The first domesticated animal by primitive man was (a) cat (b) cow (c) dog (d) horse.

Last Answer : (c) dog

Deforestation kills many organisms that produce oxygen. What oxygen-producing organisms would remain if all the forests were destroyed?

Description : Deforestation kills many organisms that produce oxygen. What oxygen-producing organisms would remain if all the forests were destroyed?

Last Answer : plankton

Process by which insecticides like DDT reach man is

Description : Process by which insecticides like DDT reach man is

Last Answer : Process by which insecticides like DDT reach man is A. Bioaccumulation B. biomagnification C. Bioremediation D. Eutrophication.

Name the condition which influences the development of plants into distinctive forms. (1) Climatic conditions (2) Soil conditions (3) Environmental conditions (4) Social conditions

Description : Name the condition which influences the development of plants into distinctive forms. (1) Climatic conditions (2) Soil conditions (3) Environmental conditions (4) Social conditions 

Last Answer : Climatic conditions

Source of energy in ecosystem is (1) Sun (2) Green plants (3) Sugar produced in photosynthesis (4) ATP

Description : Source of energy in ecosystem is (1) Sun (2) Green plants (3) Sugar produced in photosynthesis (4) ATP

Last Answer : Sun

Which one of the following is the indirect use of forests ? (1) Medicinal plants (2) Checking soil erosion (3) Building material (4) Grazing

Description : Which one of the following is the indirect use of forests ? (1) Medicinal plants (2) Checking soil erosion (3) Building material (4) Grazing

Last Answer : Checking soil erosion