Questions
Which of the following statements is/are correct in relation to Agenda 21?
a. It came into being in 2002.
b. It is a product of the Earth Summit held in New York.
c. It is an action plan of United Nations related to sustainable development.
- a and c
- a, b and c
- c only
- a and b
Which of the following methods of rainwater harvesting can be adopted by individual house owners?
- Construction of recharge trenches
- On-channel storage of water
- Creation of new water bodies
- Roof-top rainwater harvesting
Directions: For the Assertion (A) and Reason (R) given below, choose the correct alternative.
Assertion (A): Proper discharge and disposal of industrial effluents can help preventing land degradation.
Reason (R): Deforestation causes land degradation.
- A is true, R is false
- A is false, R is true
- Both A and R are true, but R is not the correct explanation of A.
- Both A and R are true and R is the correct explanation of A.
Directions: For the Assertion (A) and Reason (R) given below, choose the correct alternative.
Assertion (A): Black soil is formed from the weathering of igneous rocks.
Reason (R): Wheat is the main crop grown in black soil region.
- A is true, R is false
- A is false, R is true
- Both A and R are true, but R is not the correct explanation of A.
- Both A and R are true and R is the correct explanation of A.
Directions: Match the following.
- 1 - c, 2 - b, 3 - a
- 1 - c, 2 - a, 3 - b
- 1 - b, 2 - c, 3 - a
- 1 - b, 2 - a, 3 - c
Directions: For the Assertion (A) and Reason (R) given below, choose the correct alternative.
Assertion (A): Soil erosion makes the land unfit for cultivation.
Reason (R): Over-grazing and over-cropping cause soil erosion.
- A is true, R is false
- A is false, R is true
- Both A and R are true, but R is not the correct explanation of A.
- Both A and R are true and R is the correct explanation of A.
Which of the following statements is/are correct?
a. Only 2.5% of world's total volume of water is freshwater.
b. India has about 6.5% of world's total volume of freshwater resources.
c. 96.5% of the total volume of Earth’s water exists as oceans.
- a and c
- only a
- a, b and c
- b and c
What is the forest cover of India?
- 20% of total geographical area
- 21.34% of total geographical area
- 35% of total geographical area
- 20.25% of total geographical area
Which of the following statements about forests is not correct?
- Reduce soil erosion
- Provide recreational opportunities
- Provide economic development
- Cause land degradation
Which of the following are the methods of water conservation?
a. Drip irrigation
b. Zero-net deforestation
c. Inter-linking of rivers
d. Plant vegetation
- a and c
- a, c and d
- b and d
- a, b, c and d