Environment And Ecology: Previous Year Questions
Environment is the immediate surrounding of living organisms while ecology is the study of living organisms in their environments. The Environment and Ecology quiz below assesses these two topics as one. See how much you know.
- 1.Consider the following1. Star tortoise2. Monitor lizard3. Pygmy hog4. Spider monkeyWhich of the above found in India?
- A.
1, 2 and 3 only
- B.
2 and 3 only
- C.
1 and 4 only
- D.
1, 2, 3 and 4
- 2.Which of the following can be found as pollutants in the drinking water in some parts of India? 1. Arsenic2. Sorbitol3. Fluoride4. Formaldehyde5. UraniumSelect the correct answer using the codes given below.
- A.
1 and 3 only
- B.
2, 4 and 5 only
- C.
1, 3 and 5 only
- D.
1, 2, 3, 4 and 5
- 3.Consider the following animals:1. Sea cow2. Sea horse3. Sea lionWhich of the above is/are mammal/mammals?
- A.
1 only
- B.
1 and 3 only
- C.
2 and 3 only
- D.
1, 2 and 3
- 4.In the grasslands, trees do not replace the grasses as a part of an ecological succession because of
- A.
insects and fungi
- B.
Limited sunlight and paucity of nutrients
- C.
Water limits and fire
- D.
None of the above
- 5.
- A.
Ocean, lakes, grasslands, mangroves
- B.
Mangroves, ocean, grasslands, lakes
- C.
Mangroves, grasslands, lakes, ocean
- D.
Ocean, mangroves, lakes, grasslands
- 6.Acid rain is caused by the pollution of environment by
- A.
Carbon dioxide and nitrogen
- B.
Carbon monoxide and carbon dioxide
- C.
Ozone and carbon dioxide
- D.
Nitrous oxide and sulphur dioxide
- 7.With reference to food chains in ecosystems, consider the following statements: 1. A food chain illustrates the order in which a chain of organisms feed upon each other.2. Food chains are found within the populations of a species.3. A food chain illustrates the numbers of each organism which are eaten by others.Which of the statements given above is / are correct?
- A.
1 only
- B.
1 and 2 only
- C.
1, 2 and 3
- D.
None
- 8.In which of the following States is lion-tailed macaque found in its natural habitat? 1. Tamil Nadu2. Kerala3. Karnataka4. Andhra PradeshSelect the correct answer using the codes given below
- A.
1, 2 and 3 only
- B.
2 only
- C.
1, 3 and 4 only
- D.
1, 2, 3 and 4
- 9.Which one of the following terms describes not only the physical space occupied by an organism, but also its functional role in the community of organisms?
- A.
Ecotone
- B.
Ecological niche
- C.
Habitat
- D.
Home range
- 10.Photochemical smog is a resultant of the reaction among
- A.
NO2, 03 and peroxyacetyl nitrate in the presence of sunlight
- B.
CO, 02 and peroxyacetyl nitrate in the presence of sunlight
- C.
CO, CO2 and N02 at low temperature
- D.
High concentration of N02, O3 and CO in the evening
- 11.With reference to the food chains in ecosystems, which of the following kinds of organism is / are known as decomposer organism/organisms? 1. Virus2. Fungi3. BacteriaSelect the correct answer using the codes given below.
- A.
1 only
- B.
2 and 3 only
- C.
1 and 3 only
- D.
1, 2 and 3
- 12.
- A.
1 only
- B.
2 and 3 only
- C.
1 and 3 only
- D.
1, 2 and 3
- 13.Consider the following fauna of India:1.Gharial2.Leatherback turtle3.Swamp deerWhich of the above is/are endangered?
- A.
1 and 2 only
- B.
3 only
- C.
1, 2 and 3
- D.
None
- 14.Which of the following leaf modifications occurs/occur in desert areas to inhibit water loss? 1. Hard and waxy leaves2. Tiny leaves or no leaves3. Thorns instead of leavesSelect the correct answer using the codes given below.
- A.
1 and 2 only
- B.
2 only
- C.
1 and 3 only
- D.
1, 2 and 3
- 15.How does National Biodiversity Authority (NBA) help in protecting the Indian agriculture?1. NBA checks the biopiracy and protects the indigenous and traditional genetic resources.2. NBA directly monitors and supervises the scientific research on genetic modification of crop plants.3. Application for Intellectual Property Rights related to genetic/biological resources cannot be made without the approval of NBA.Which of the statements given above is/are correct?
- A.
1 only
- B.
2 and 3 only
- C.
1 and 3 only
- D.
1, 2 and 3
- 16.The National Green Tribunal Act, 2010 was enacted in consonance with which of the following provisions of the constitution of India?1. Right to healthy environment, construed as a part of Right to life under Article 212. Provision of grants for raising the level of administration in the Scheduled Tribes under Article 275(1).3. Power and functions of Gram Sabha as mentioned under Article 243 (A)Select the correct answer using the codes given below:
- A.
1 only
- B.
2 and 3 only
- C.
1 and 3 only
- D.
1, 2 and 3
- 17.Consider the following kinds of organisms:1. Bacteria2. Fungi3. Flowering PlantsSome species of which of the above kinds of organisms are employed as biopesticides?
- A.
1 only
- B.
2 and 3 only
- C.
1 and 3 only
- D.
1, 2 and 3
- 18.Lead, ingested or inhaled, is a health hazard. After the addition of lead to petrol has been banned, what still are the sources of lead poisoning?1. Smelting Units2. Pens and pencils3. Hair oils and cosmeticsSelect the correct answer using the codes given below:
- A.
1, 2 and 3 only
- B.
1 and 3 only
- C.
2 and 4 only
- D.
1, 2, 3 and 4
- 19.The acidification of ocean is increasing. Why is this phenomenon a cause of concern?1. The growth and survival of calcareous phytoplankton will be adversely affected.2. The growth and survival of coral reefs will be adversely affected.3. The survival of some animals that have phytoplanktonic larvae will be adversely affected.4. The cloud seeding and formation of clouds will be adversely affected.Which of the statements given above is/are correct?
- A.
1, 2 and 3 only
- B.
2 only
- C.
1 and 3 only
- D.
1, 2, 3 and 4
- 20.What are the reasons for the people's resistance to the introduction of BT brinjal in India?1. Bt brinjal has been created by inserting a gene from a soil fungus into its genome.2. The seeds of Bt brinjal are terminator seeds and therefore, the farmers have to buy the seeds before every season from the seed companies.3. There is an apprehension that the consumption of Bt brinjal may have adverse impact on health.4. There is some concern that the introduction of Bt brinjal may have adverse effect on the biodiversity.Select the correct answer using the codes given below:
- A.
1, 2 and 3 only
- B.
2 and 3 only
- C.
And 4 only
- D.
1, 2, 3 and 4
- 21.Other than resistance to pests, what are the prospects for which genetically engineered plants have been created?1. To enable them to withstand drought2. To increase the nutritive value of the produce3. To enable them to grow and do photosynthesis in spaceships and space stations4. To increase their shelf lifeSelect the correct answer using the codes given below:
- A.
1 and 2 only
- B.
3 and 4 only
- C.
1, 2 and 4 only
- D.
1, 2, 3 and 4
- 22.Consider the following protected areas:1. Bandipur2. Bhitarkanika3. Manas4. SunderbanWhich of the above are declared Tiger Reserves?
- A.
1 and 2 only
- B.
1, 3 and 4 only
- C.
2, 3 and 4 only
- D.
1, 2, 3 and 4
- 23.In which one among the following categories of protected areas in India are local people not allowed to collect and use the biomass?
- A.
Biosphere Reserves
- B.
National Parks
- C.
Wetlands declared under Ramsar Convention
- D.
Wildlife Sanctuaries
- 24.Which one of the following groups of animals belongs to the category of endangered species?
- A.
Great Indian Bustard, Musk Deer, Red Panda and Asiatic Wild Ass
- B.
Kashmir Stag, Cheetal, Blue Bull and Great Indian Bustard
- C.
Snow Leopard, Swamp Deer, Rhesus Monkey, and Saras (Crane)
- D.
Lion-tailed Macaque, Blue Bull, Hanuman Langur and Cheetal
- 25.The Millennium Ecosystem Assessment describes the following major categories of ecosystem services-provisioning, supporting regulating, preserving and cultural which one of the following is supporting services?
- A.
Production of food and water
- B.
Control of climate and disease
- C.
Nutrient cycling and pollination
- D.
Maintenance of diversity
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