Important objectives type questions answer on environmental for central and primary teacher eligibility test

1. Due to Corriolis effect, wind in the:

A. Northern Hemisphere moves to the left with respect to the rotating earth.

B. Northern Hemisphere moves to the right.

C. Southern Hemisphere move northward.

D. Both Hemisphere move independent of each other.

2. Precipitation of CaC03 may occur when:

A. Sea water is shallow and CO2 is lost.

B. Sea water is warm and CO2 is being lost.

C. Sea water is cold and CO2 is being lost.

D. Sea water is deep and CO2 is being added.

3. CO, in soil and C02 in atmosphere differ:

A. by a factor of 2

B. by a factor of 1

C. by a factor of 3.5

D. by a factor of 4

5. Trapping plume occurs when:

A. Temperature increases with height.

B. Temperature decreases with height.

C. Temperature remains steady with height.

D. Plume lies in a lapse region and sandwiched between inversion layers.

6. The pH of a solution containing hydrogen ions concentration of 10"5 mol/L is:

A. 5.0.

B. 7.0

C. 2.0

D. 9.0

7. Malathion is:

A. Organo Phosphorus Pesticide

B. Organo Chloro Pesticide

C. Organo Carbamate Pesticide

D. Not a Pesticide

8. Critical point for water in a P - T diagram Suggests: (One statement only is correct)

A. Water is unstable

B. Steam is the only stable phase

C. Both ice and steam are stable phases

D. Steam, liquid water and ice are stable phases

9. The range of pH for river water in India is:

A. 1 - 14

B. 4 - 5

C. 6.5 - 8.0

D. 7 - 12

11. Ozone toxicity to plants is generally due to the involvement of which unsaturated hydrocarbons:

A. Unsaturated fatty acid

B. Methylene

C. Ethylene

D. None of the above

12. In vitro pollen germination is inhibited by:

A. SO2

B. 03

C. Both of the above

D. None of the above

13. Which one of the following is the most productive ecosystem?

A. Oligotrophic Lake

B. High Sea

C. Estuary

D. Savanna

14. Vermiculture technology is used in:

A. Production of Fish

B. Animal Husbandary

C. Poultry Farming

D. Organic Farming

15. Which one of the following sequence represents increasing order of toxicity of metals?

A. Ca. Zn, Cd, Mn

B. Ca, Mn, Zn, Cd

C. Zn, Mn, Cd, Ca

D. Mn, Cd, Zn, Ca

16. Energy flow in an ecosystem is:

A. Cyclic

B. Multidirectional

C. Sequential

D. Unidirectional

17. Removal of key-stone species would cause:

A. Drastic change in community composition

B. Drastic change in ecological system

C. Drastic change in food chain

D. Drastic change in energy flow

18. Match List-I and List-II and select correct answer:

List-I List-II

(a) Mesozoic (i) Tertiary

(b) Proterozoic (ii) Triassic

(c) Cenozoic (iii) Pre Cambrian

(d) Paleozoic (iv) Permian

A b c d

A iii ii i iv

B. ii iii i iv

C. ii iii iv i

D. iii ii iv i

19. Correct order of increasing energy content for various types of coal is:

A. Anthracite, Peat, Bit-coal, Lignite

B. Lignite, Peat, Bit-coal, Anthracite

C. Peat, Lignite, Bit-coal, Anthracite

D. Peat, Lignite, Anthracite, Bit-coal

20. Silica content of granodiorite is in the range of:

A 22 - 44 %

B. 66 - 88 %

C. 44 - 56 %

D. 44 - 66 %

21. Formation of sedimentary chalcopyrite requires: 

A. High pH, high Eh 

B. Low pH, high Eh 

C. Only low Eh 

D. Low Eh, low pH

22. Bowen's law basically tells us:

A. How a sedimentary rock is formed?

B. How various igneous minerals are formed?

C. How some economic minerals are formed?

D. Both A and B are correct

24. The most abundant alkaline component of the atmosphere is:

A. Ammonia

B. Nitrogen

C. Sulphur dioxide

D. Carbon Dioxide

25. The faecal indicator bacteria are:

A .Staphylococcus aureus

B. Streptococeus faecalis

C. Escherichia coli

D. Salmonella typhi

26. The maximum permissible level of BOD (mg/1) in wastewater that is let into river is:

A. 20

B. 30

C. 40

D. 10

27. Coral reefs are vulnerable to:

A. Siltation

B. Flood water

C. Nutrients

D. Salt flow

28. Assertion (A): The mangroves are nursery ground for fish and larvae.

Reason (R): The mangroves are covered with mangrove plants that enrich the environment.

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

31. All lands with tree cover of canopy density of 40% and above is notified as:

A. Scrub

B. Open forest

C. Dense forest

D. Forest covers

33. The Water (Prevention and Control of Pollution) Act 1974....

A. Regulates the discharge of hazardous pollutants into the nation's surface water.

B. Regulates the emission of hazardous air pollutants.

C. Regulates waste disposal of sea.

D. Regulates the transportation of hazardous materials.

34. The harmonic mean of the numbers 0, 2, 4, and 6 is:

A. 3

B. 0

C. 2

D. 1

35. Assertion (A): Wetlands are often described as ecotones.

Reason (R): Wetlands are biologically rich dynamic zones of transition between two different ecosystems.

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

36. The first National Park established in India is: A Indira Gandhi National Park

B. Indravati National Park

C. Corbett National Park

D. Kaziranga National Park

38. A device fitted to the exhaust system petrol driven motor vehicle to reduce emissions of pollutants is called as:

A. Conversion System

B. Conversion Kit

C. Catalytic Converter

D. Catalytic Box

41. Which one of the following group of plants is most resistant to ionizing radiations?

A. Coniferous Forest

B. Grass Land

C. Lichen and Mosses

D. Mixed Forest

42. How many moles of oxygen are required to burn one mole of propane?

A. 2

B. 3

C. 4

D. 5

43. What percentage of India's population lives in Urban Centres?

A. 20

B. 30

C. 10

D. 50

44. The recent asbestos controversy about the French ship going to Alang was primarily due to:

A. Violation of Indian Coastal Zone Laws.

B. Violation of Transnational Movement of Hazardous Waste.

C. Gujarat State Pollution Control Laws

D. Indian Air Pollution Laws

45. Due to the increasing energy use the ozone layer over the arctic is:

A. Increasing

B. Decreasing

C. Not shifting in size

D. Not affected at all

46. Ecological restoration of degraded sites is aimed to:

A. Restore all biophysical characteristics of pristine ecosystem.

B. Restore social desirable and economically feasible characteristics of original ecosystem.

C. Leave it alone and allow natural regeneration.

D. Prohibit all human activity in the area.

47. The first Environmental Law in India was enacted in:

A. 1947

B. 1950

C. 1972

D. 1982

49. The mean annual rainfall in India is:

A. 110 mm

B. 110 cm

C. 85 cm

D. 110 m

50. The median of a set of numbers 2, 5, 8, 10, 12, 16, 20, 23:

A. 10

B. 11

C. 12.5

D. 9

Answers

1

2

3

5

A

A

D

D

6

7

8

9

A

A

D

C

11

12

13

14

15

B

B

D

D

B

16

17

18

19

20

D

A

B

C

A

21

22

24

25

B

D

B

C

26

27

28

29

30

D

C

B

B

B

31

33

34

35

B

A

B

C

36

38

C

C

41

42

43

44

45

C

B

B

B

B

46

47

49

50

A

B

B

B


Content By -
Ripon Sarkar
Balurghat, West Bengal

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