1. Which one of the following pairs is correctly matched?
(a) Biosphere —
Eduard Suess
(b) Ecosystem — A.P. de Candolle
(c) Ecology — A.G. Tansley
2. Which of the following groups of gases contribute to the
‘Green House Effect’?
(a) Ammonia and Ozone
(b) Carbon mono-oxide and Sulphur dioxide
(c) Carbon tetra fluoride and Nitrous oxide
(d) Carbon dioxide and Methane
3. Which one of the following is the correct definition of “Agenda21” ?
(a) It is an action
plan of U.N.O for protecting human rights.
(b) It is a book of 21 chapters on nuclear disarmament.
(c) It is an action plan for the sustainable development.
(d) It is an agenda for the election of the president in the
next meeting of SAARC.
4. Environmental degradation means
(a) Overall lowering of environmental qualities.
(b) Adverse change brought in by human activities.
(c) Ecological imbalance
(d) All the above
5. Which of the following countries suffer from the acid
rains?
1. Canada 2. France 3. Norway 4. Germany
Select the correct answers from the codes given below Codes:
(a) 1 and 2
(b) 1 and 3
(c) 2 and 3
(d) 3 and 4
6. Which of the following statements about Radioactive
pollution are correct?
1. It causes genetic changes in the animals.
2. It causes disbalance among different minerals in the
soil.
3. It hinders blood circulation.
4. It causes cancers. Select the correct answer from the
codes given below Codes:
(a) 1 and 2
(b) 1 and 4
(c) 1, 3 and 4
(d) 2, 3 and 4
7. Given below are two statements:
Assertion (A): Natural vegetation
is the true index of climate.
Reason (R): Water loving plants are found in moist climate
In the context of the above statements, which one of the following is correct?
(a) Both A and R are true and R is the correct explanation
of A.
(b) Both A and R are true but R is not the correct explanation
of A.
(c) A is true but R is false.
(d) A is false but R is true.
8. Which of the following conditions indicate the impact of
global warming?
1. Melting of glaciers
2. Lowering down of sea level
3. Changes in weather conditions
4. Rise in global temperature Select the correct answer from
the codes given below Codes:
(a) 1 and 2
(b) 1, 2 and 3
(c) 1, 3 and 4
(d) 1, 2, 3 and 4
9. Consider the following statements:
Assertion (A): Forests are a renewable resource.
Reason (R): They enhance the quality of environment. Select
the correct answer from the codes given below Codes:
(a) Both A and R are true and R is the correct explanation
of A.
(b) Both A and R are true but R is not the correct
explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
10. As an ecosystem, wetlands are useful for which of the
following?
(a) For nutrient recovery and cycling
(b) For releasing heavy metals through absorption by plants.
(c) They
maintain the rivers and control floods.
(d) All the above
11. Which one of the following pairs is not correctly
matched?
(a) Kyoto Protocol — Carbon Trading
(b) Environmental — Leopold Matrix impact assessment
(c) The year without —
1816 summer
(d) Milankovich — On the origin of Theory
Species
12. Which of the following statements are true about
ecosystem?
Select the correct answer from the codes:
1. Ecosystem comprises both biotic and abiotic components.
2. Solar radiation is the main driving force of the
ecosystem.
3. Ecosystem is a closed system.
4. Ecosystem does not have its own productivity Codes:
(a) 1 and 2 (b) 2 and 3 (c) 1 and 3 (d) 3 and 4
13. Consider the following statements:
Assertion (A): Plants are called primary producers.
Reason (R): Plants produce their food themselves through the
process of photosynthesis. Select the correct answer from the codes given
below:
(a) Both A and R are true and R is the correct explanation
of A.
(b) Both A and R are true but R is not the correct
explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
14. Which one of the following statements is not correct?
(a) Ecosystem’s structure, species composition and
functioning change seasonally between years.
(b) Nature has spent
millions of years to refine a stable ecosystem.
(c) Ecosystem functions mainly through the input of solar
energy
(d) The relative loss of energy due to respiration decreases
with higher trophic levels.
15. Consider the following statements:
Assertion (A): Conservation is a basic element of
environmental planning.
Reason (R): Conservation and development are complementary
to each other. Select the correct answer from the codes given below Codes:
(a) Both A and R are ture and R is the correct explanation
of A.
(b) Both A and R are true but R is not the correct
explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
16. Which one of the following does not promote stability of
the ecosystem?
(a) Balancing between production and consumption of each
element in the ecosystem.
(b) Balance between input and output of energy.
(c) Normal functioning of
different biochemical cycles.
(d) Increase of human population.
17. Consider the following statements:
Assertion (A): Ecological productivity decreases from the
equator towards the poles.
Reason (R): Insulation rapidly decreases from the equator
towards the poles. Select the correct answer from the codes given below: Codes:
(a) Both A and R are true and R is the correct explanation
of A.
(b) Both A and R are true but R is not the correct
explanation of A.
(c) A is true but R is false. (d) A is false but R is true.
18. Which one of the following statements is correct?
(a) The relative loss of energy due to respiration is lower
from higher trophic levels.
(b) Species at higher trophic levels appear to be less
efficient in using their available
food supply.
(c) Higher trophic levels tend to be less discrete than the
lower ones.
(d) Food chains tend to be reasonably long.
19. Consider the following statements:
Assertion (A): Organic farming reduces the emission of
greenhouse gases.
Reason (R): Organic forming utilise alternate practices.
Select the correct answer from the codes given below:
Codes:
(a) Both A and R are true and R is the correct explanation
of A.
(b) Both A and R are true but R is not the correct
explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
20. How does National Biodiversity
Authority (NBA) help in protecting the
Indian agriculture?
1. NBA checks the bio piracy and protects the indigenous and traditional genetic resources.
2. National Biodiversity Authority
(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) 1 and 2 only
(c) 1 and 3 only
(d) 1, 2 and 3
21. Consider the following protected areas:
1. Bandipur 2. Bhitarkanika 3. Manas 4. Sunderbans
Which 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
22. With reference to the wetland of India, consider the
following statements:
1. The country’s total geographical area under the category
of wetlands is recorded more in Gujarat as compared to other states.
2. In India, the total geographical area of coastal wetlands
is larger than that of inland wetlands. Which of the statements given above
is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1
and 2
(d) Neither 1 nor 2
23. Which of the following can be threats to the
biodiversity of a geographical area?
1. Global warming
2. Fragmentation of habitat
3. Invasion of alien species
4. Promotion of vegetarianism Select the correct answer
using the codes given below:
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1, 2 and 3 only
(d) 1, 2, 3 and 4 only
24. Consider the following statements:
1. Biodiversity is normally greater in the lower latitudes
as compared to the higher latitudes.
2. Along the mountain gradients, biodiversity is normally
greater in the lower altitudes as compared to the higher altitudes.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both
1 and 2
(d) Neither 1 nor 2
25. The Red Data Books published by the International Union for
Conservation of Nature and Natural Resources
(IUCN) contains lists of
1. Endemic plant and animal species present in the
bio-diversity hotspots.
2. Threatened plant and animal species.
3. Protected sites for conservation of nature and natural
resources in various countries. Select the correct answer using the codes given
below:
(a) 1 and 3
(b) 2 only
(c) 3 only
(d) 2 and 3
Answer:
1. (a) Biosphere —
Eduard Suess
2. (d) Carbon dioxide and Methane
3. (c) It is an action plan for the sustainable development.
4. (d) All the above
5. (b) 1 and 3
6. (b) 1 and 4
7. (a) Both A and R are true and R is the correct
explanation of A.
8. (c) 1, 3 and 4
9. (b) Both A and R are true but R is not the correct explanation
of A
10. (d) All the above
11. (d) Milankovich — On the origin of Theory Specie
12. (a) 1 and 2
13. (a) Both A and R are true and R is the correct explanation of
A.
14. (d) The relative loss of energy due to respiration decreases
with higher trophic levels.
15. (b) Both A and R are true but R is not the correct
explanation of A.
16. (d) Increase of human population.
17. (a) Both A and R are true and R is the correct
explanation of A.
18. (c) Higher trophic levels tend to be less discrete than
the lower ones.
19. (a) Both A and R are true and R is the correct
explanation of A.
20. (a) Both A and R are true and R is the correct
explanation of A.
21. (b) 1, 3 and 4 only
22. (c) Both 1
and 2
23. (c) 1, 2 and 3 only
24. (c) Both 1 and 2
25. (b) 2 only
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