Natural Resources Multiple Choice Questions and Answers

21. Mulching helps in

1. soil fertility
2. moisture conservation
3. improvements soil structure
4. soil sterility

22. The main energy source for the environment is ...........................

1. Solar energy
2. Chemical energy
3. Bioelectric energy
4. Electrical energy

23. The amount of solar radiation reaching the surface of the earth is called

1. Solar flux
2. reflected light
3. minerals
4. solvents

24. Pedology?

1. Study of water
2. Study of air
3. Study of soil
4. none

25. What are rodenticides?

1. that kill fishes
2. that kill insects
3. that kill rats
4. that kill crocos

26. Major consumer of wood from forest is ........................

1. Thermal Power Plant
2. Paper Industry
3. Chemistry Industry
4. none

27. Ozone layer is present in

1. Troposphere
2. Stratosphere
3. Mesosphere
4. Ionosphere

28. Ozone Umbrella is located in which layer of atmosphere

1. Troposphere
2. Stratosphere
3. Mesosphere
4. Ionosphere

29. The most harmful of ultraviolet radiations are

1. UV-C
2. UV-B
3. UV-A
4. All the above.

30. Moisture in the air is known as

1. Water
2. Fog
3. Snow
4. Humidity