Description : Increase in concentration of the toxicant at successive trophic levels is known as (a) biotransformation (b) biogeochemical cycling (c) biomagnification (d) biodeterioration.
Last Answer : (c) biomagnification
Description : The waste management technique that involves the use of micro-organisms to remove or neutralize pollutants from contaminated site is called (1) Bio sensor (2) Bio magnification (3) Bio remediation (4) Bio concentration
Last Answer : Bio remediation
Description : Among the following air pollutants which directly impacts human health as well as climate ? (A) Soot (B) Sulphur dioxide (C) Oxides of nitrogen (D) Chlorofluoro carbons
Last Answer : (A) Soot
Description : Which of the following pollutants can cause cancer in humans ? (A) Pesticides (B) Mercury (C) Lead (D) Ozone
Last Answer : Answer: A
Description : In the recently launched Air Quality Index in India, which of the following pollutants is not included? (A) Chlorofluorocarbons (B) Carbon monoxide (C) Fine particulate matter (D) Ozone
Last Answer : (A) Chlorofluorocarbons
Description : One of the anthropogenic sources of gaseous pollutants chlorofluorocarbons (CFCs) in air is (A) Cement Industry (B) Fertiliser industry (C) Foam industry (D) Pesticide industry
Last Answer : (C) Foam industry
Description : Which of the following pollutants is not emitted from the transport sector? (A) Oxides of nitrogen (B) Chlorofluorocarbons (C) Carbon monoxide (D) Poly aromatic hydrocarbons
Last Answer : (B) Chlorofluorocarbons
Description : Which of the following pollutants affects the respiratory tract in humans? (A) Carbon monoxide (B) Nitric oxide (C) Sulphur di-oxide (D) Aerosols
Last Answer : (C) Sulphur di-oxide
Description : The maximum emission of pollutants from fuel sources in India is caused by : (A) Coal (B) Firewood (C) Refuse burning (D) Vegetable waste product
Last Answer : Answer: B As many as 115,000 people die in India each year from coal-fired power plant po llution, costing the country about $4.6 billion, according to a groundbreaking new study released ... generation in India and its usage is continuously increasing to meet the energy demands of the country.
Description : Biomagnification of DDT in an aquatic food chain starting from water having a concentration of 0.003 ppb may go, in fish eating birds, upto:
Last Answer : Biomagnification of DDT in an aquatic food chain starting from water having a concentration of 0.003 ppb may go, in ... B. 50 ppm C. 25 ppm D. 2 ppm
Description : 8. If pollutants are added continuously in a water body they will cause a) increase in BOD b) decrease in BOD c) death of all plants d) increase in oxygen concentration
Last Answer : a) increase in BOD
Description : What is a keystone species? (a) A species which makes up only a small proportion of the total biomass of a community, yet has a huge impact on the community's organization and ... A dominant species that constitutes a large. proportion of the biomass and which affects many other species.
Last Answer : (a) A species which makes up only a small proportion of the total biomass of a community, yet has a huge impact on the community’s organization and survival.
Description : Which biomass has the highest species diversity
Last Answer : Tropical rainforests
Description : Sampling error decreases with the (A) decrease in sample size (B) increase in sample size (C) process of randomization (D) process of analysis
Last Answer : (B) increase in sample size
Description : Assertion (A): Conserving our soil resources is critical to human survival. Reason (R): Soil is home to many micro-organisms and contains minerals. Choose the correct code: (A) Both (A) and (R) are correct and (R) is the ... (C) (A) is true and (R) is false. (D) (A) is false and (R) is true.
Last Answer : (A) Both (A) and (R) are correct and (R) is the correct explanation of (A).
Description : $ living organisms can exist alone ! A population is a group of organisms of entirely different species occupying a particular area.
Last Answer : $ living organisms can exist alone ! A population is a group of organisms of entirely different species occupying ... D. If both As and R are wrong.
Description : The interaction between two living organisms of different species which is beneficial to both but is not obligatory because they can live without each
Last Answer : The interaction between two living organisms of different species which is beneficial to both but ... or symbiosis C. Commensalism D. Amensalism
Description : The 'Red Data Book' is the documentation of endangered rare species of: (1) Flora (2) Fauna (3) Other living organisms (4) All of these are correct
Last Answer : (4) All of these are correct Explanation: A Red Data Book contains lists of species whose continued existence is threatened. Species are classified into different categories of perceived risk. It documents rare ... , plants and fungi, as well as other living organisms in an area, region or country.
Description : Which of the following branches deals with the interactions of same species of living organisms with their nonliving environment? (1) Autecology (2) Synecology (3) Ecology (4) Palaeontology
Last Answer : (3) Ecology Explanation: Ecology is the scientific study of the relationships that living organisms have with each other and with their natural environment. Ecosystems are composed of ... various niche construction activities, regulate the flux of energy and matter through an environment.
Description : Biodiversity of a geographical region represents (a) endangered species found in the region (b) the diversity in the organisms living in the region (c) genetic diversity in the dominant species of the region (d) species endemic to the region.
Last Answer : (b) the diversity in the organisms living in the
Description : A biocontrol agent to be a part of an integrated pest management should be (a) species-specific and symbiotic (b) free living and broad spectrum (c) narrow spectrum and symbiotic (d) species-specific and inactive on non-target organisms.
Last Answer : (d) species-specific and inactive on non-target organisms.
Description : A taxon is (a) a group of related families (b) a group of related species (c) a type of living organisms (d) a taxonomic group of any ranking
Last Answer : (c) a type of living organisms
Description : Varieties of vegetables such as cabbage, broccoli and cauliflower have been produced from a wild cabbage species. Such process of producing new varieties of living organisms is called (1) Natural selection (2) Artificial selection (3) Speciation (4) Genetic drift.
Last Answer : (2) Artificial selection
Description : The ‘Red Data Book’ is the documentation of endangered rare species of: (1) Flora (2) Fauna (3) Other living organisms (4) All of these are correct
Last Answer : All of these are correct
Description : Which of the following branches deals with the interactions of same species of living organisms with their non-living environment ? (1) Autecology (2) Synecology (3) Ecology (4) Palaeontology
Last Answer : Ecology
Description : The concentration of Total Dissolved Solids (TDS) in drinking water should not exceed (A) 500 mg/L (B) 400 mg/L (C) 300 mg/L (D) 200 mg/L
Last Answer : (A) 500 mg/L
Description : The waste management technique that involves the use of microorganisms to remove or neutralize pollutants from contaminated site is called (1) Bio sensor (2) Bio magnification (3) Bio remecliation (4) Bio concentration
Last Answer : (3) Bio remecliation Explanation: Bioremediation is a waste management technique that involves the use of organisms to remove or neutralize pollutants from a contaminated site. It uses naturally occurring ... non-toxic substances. There are two classes of bioremediation used In situ and Ex situ.
Description : Threshold Limit Value (TLV) is the maximum allowable concentration (i.e. safe limit) of pollutants in air. Safe limit for SO2 in air is __________ ppm. (A) 5 (B) 500 (C) 1000 (D) 2000
Last Answer : (A) 5
Description : High concentration of carcinogenic hydrocarbon pollutants in atmospheric air causes (A) Cancer (B) Silicosis (C) Respiratory disease (e.g., asthma) (D) Reduced crop yield
Last Answer : (A) Cancer
Description : National AQI published by Central Pollution Control Board (CPCB) considers concentration of how many pollutants for determining the index: a. Five b. Eight c. Six d. Twelve
Last Answer : b. Eight
Description : Which species of chromium is toxic in water: (A) Cr+2 (B) Cr+3 (C) Cr + 6 (D) Cr is non-toxic element
Last Answer : (C) Cr + 6
Description : Which of the following is an environmental consequence of floods? (a) dispersal of weed species (b) erosion of soil (c) release of pollutants into waterways (d) all of the above.
Last Answer : (d) all of the above.
Description : Which of the following is an environmental consequence of floods? a) Dispersal of weed species b) Erosion of soil c) Release of pollutants into waterways d) All of the above.
Last Answer : d) All of the above.
Description : Which of the following terms means "the system used to classify and group living organisms"?
Last Answer : Taxonomy
Description : If the persons living in flats are not contributing for its maintenance charges, what will you decide and take action to solve the discord Options: A) You will convene an urgent meeting of the ... and debar them from co-operation D) You will withdraw your own active support to the committee
Last Answer : A) You will convene an urgent meeting of the members and request them collectively to extend their support
Description : You would like to prefer to join a teaching profession Options: A) By giving bribery for your appointment in village or town school B) By exalting your excellence in national level competition C) By any means as job conditions are very difficult D) By seeking political support
Last Answer : B) By exalting your excellence in national level competition
Description : Which of the following set of statements reflects the basic characteristics of teaching ? Select the correct alternative from the codes : (i) Teaching is the same as training. (ii) There is no difference between instruction and conditioning ... (vi) (C) (ii), (iii) and (v) (D) (i), (iv) and (vi)
Last Answer : Answer: B
Description : Digital Empowerment means (i) Universal digit literacy (ii) Universal access to all digital resources (iii) Collaborative digital platform for participative governance. (iv) Probability of all entitlements for individuals through cloud. ... (ii) and (iii) only (D) (i), (ii), (iii) and (iv)
Last Answer : Answer: D
Description : “Sampling Cases” means (A) Sampling using a sampling frame (B) Identifying people who are suitable for research (C) Literally the researcher’s brief case (D) Sampling of people, newspapers, television programmes etc.
Last Answer : (D) Sampling of people, newspapers, television programmes etc.
Description : Means of grapevine communication are (A) formal (B) informal (C) critical (D) corporate
Last Answer : (B) informal
Description : “A diagram speaks more than 1000 words” The statement means that the teacher should (A) use diagrams in teaching. (B) speak more and more in the class. (C) use teaching aids in the class. (D) not speak too, much in the class.
Last Answer : (C) use teaching aids in the class.
Description : Good research ethics' means (A) Not disclosing the holdings of shares/stocks in a company that sponsors your research. (B) Assigning a particular research problem to one Ph.D./research student only ... journal. (D) Submitting the same research manuscript for publishing in more than one jo urnal.
Last Answer : (B) Assigning a particular research problem to one Ph.D./research student only
Description : Let a means minus (–), b means multiplied by (ᵡ), C means divided by (÷) and D means plus (+). The value of 90 D 9 a 29 C 10 b 2 is (A) 8 (B) 10 (C) 12 (D) 14
Last Answer : Answer: *
Description : Ex Post Facto research means (A) The research is carried out after the incident (B) The research is carried out prior to the incident (C) The research is carried out along with the happening of an incident. (D) The research is carried out keeping in mind the possibilities of an incident.
Last Answer : (A) The research is carried out after the incident
Description : Dynamic approach to teaching means (A) Teaching should be forceful and effective (B) Teachers should be energetic and dynamic (C) The topics of teaching should not be static, but dynamic (D) The students should be required to learn through activities
Last Answer : (D) The students should be required to learn through activities
Description : Given that in a code language, ‘645’ means ‘day is warm’; ‘42’ means ‘warm spring’ and ‘634’ means ‘spring is sunny’; which digit represents ‘sunny’ ? (A) 3 (B) 2 (C) 4 (D) 5
Description : Determine the nature of the following definition: ‘Poor’ means having an annual income of Rs.10,000. (A) persuasive (B) precising (C) lexical (D) stipulative
Last Answer : (B) precising
Description : If ‘367’ means ‘I am happy’; ‘748’ means ‘you are sad’ and ‘469’ means ‘happy and sad’ in a given code, then which of the following represents ‘and’ in that code? (A) 3 (B) 6 (C) 9 (D) 4
Last Answer : Answer: C