Question 13: In our country, there are attempts to increase the height of several existing dams like Tehri and Almati, dams across Narmada. Choose the correct statements among the following that are a consequence of raising the height of dams
Terrestrial flora and fauna of the area is destroyed completely
Dislocation of people and domestic animals living in the area
Valuable agricultural land may be permanently lost
It will generate permanent employment for people
(i) and (ii)
(i), (ii) and (iii)
(ii) and (iv)
(i), (iii) and (iv)
Answer: (b) (i), (ii) and (iii)
Explanation: A dam destroys terrestrial flora and fauna because a large area gets submerged. It also results in dislocation of a huge population. Vast tracts of agricultural land are permanently lost due to coming under the catchment area.
Question 14: Expand the abbreviation GAP
Governmental Agency for Pollution Control
Gross Assimilation by Photosynthesis
Ganga Action Plan
Governmental Agency for Animal Protection
Answer: (c) Ganga Action Plan
Question 15: Select the incorrect statement
Economic development is linked to environmental conservation
Sustainable development encourages development for current generation and conservation of resources for future generations
Sustainable development does not consider the view points of stakeholders
Sustainable development is a long planned and persistent development
Answer: (c) Sustainable development does not consider the view points of stakeholders
Explanation: The examples of Arabari forests and Chipko Movement show that involvement of all stakeholders is mandatory for the success of any conservation effort.
Question 16: Which of the following is not a natural resource?
Answer: (d) Wooden house
Explanation: A house is man-made; no matter if it is wooden or made from bricks and mortar.
Question 17: Select the wrong statement
Forests provide variety of products
Forests have greater plant diversity
Forests do not conserve soil
Forests conserve water
Answer: (c) Forests do not conserve soil
Explanation: Forest plays important role in soil conservation because trees hold the topsoil in place.
Question 18: Arabari forests of Bengal is dominated by
Answer: (b) Sal
Question 19: Ground water will not be depleted due to
thermal power plants
loss of forest, and decreased rainfall
cropping of high water demanding crops
Answer: (a) Afforestation
Explanation: Afforestation will help in recharge of groundwater and thus it will have a positive impact on water table.
Question 20: Opposition to the construction of large dams is due to
all the above
Answer: (d) All of the above
Explanation: Displacement of people and loss of livelihood are the social reasons. Huge cost is the economic reason. Destruction of flora and fauna in the catchment area is the environmental reason.
Question 21: Khadins, Bundhis, Ahars and Kattas are ancient structures that are examples for
Answer: (c) Water harvesting
Question 22: Pick the right combination of terms which has no fossil fuel.
Wind, ocean and coal
Kerosene, wind and tide
Wind, wood, sun
Petroleum, wood, sun
Answer: (c) Wind, wood, sun
Question 23: Select the eco-friendly activity among the following
Using car for transportation
Using polybags for shopping
Using dyes for colouring clothes
Using windmills to generate power for irrigation
Answer: (d) Using windmills to generate power for irrigation
Explanation: Using windmills involves using wind energy which is a renewable source of energy.
Question 24: It is important to make small check dams across the flooded gullies because they
hold water for irrigation
hold water and prevent soil erosion
recharge ground water
hold water permanently
(i) and (iv)
(ii) and (iii)
(iii) and (iv)
(ii) and (iv)
Answer: (b) (ii) and (iii)
Explanation: Check dams cannot hold water permanently and hence there cannot be continuous supply for irrigation. However, check dams facilitate the recharge of groundwater by holding water for some time.