Match List-I (strategy for sustainable development) with List-II (its…

Match List-I (strategy for sustainable development) with List-II (its benefit):

List-I	List-II
(A) Wind mills	(I) Do away with the need for large scale transmission towers and cables
(B) Mini-hydel plants	(II) Useful for remote areas where supply of power through the grid is very costly
(C) Gobar gas plants	(III) Provide electricity without any adverse impact on the environment in areas of high wind speed
(D) Photovoltaic cells	(IV) Leave behind a slurry that is a very good organic fertiliser

Choose the correct answer from the options given below:

Answer & explanation

Correct answer: option 2

The correct answer is Option (2) → (A)-(III), (B)-(I), (C)-(IV), (D)-(II)

Each strategy has its own benefit for the environment.

List-I	List-II	Reason
(A) Wind mills	(III) Provide electricity without any adverse impact on the environment in areas of high wind speed	They use high wind speed to turn turbines; no fuel is burnt.
(B) Mini-hydel plants	(I) Do away with the need for large scale transmission towers and cables	The power is used locally, so long lines are not needed.
(C) Gobar gas plants	(IV) Leave behind a slurry that is a very good organic fertiliser	Cattle dung gives gas, and the slurry left over is a fertiliser.
(D) Photovoltaic cells	(II) Useful for remote areas where supply of power through the grid is very costly	They turn sunlight into electricity on the spot, which suits remote areas.

NCERT (2026-27): “7.5 Strategies for Sustainable Development … Wind Power: In areas where speed of wind is usually high, wind mills can provide electricity without any adverse impact on the environment. Wind turbines move with the wind and electricity is generated. No doubt, the initial cost is high. But the benefits are such that the high cost gets easily absorbed.”

“7.5 Strategies for Sustainable Development … The turbines generate electricity which can be used locally. Such power plants are more or less environment-friendly as they do not change the land use pattern in areas where they are located; they generate enough power to meet local demands. This means that they can also do away with the need for large scale transmission towers and cables and avoid transmission loss.”

“7.5 Strategies for Sustainable Development … For the gobar gas plant to function, cattle dung is fed to the plant and gas is produced which is used as fuel while the slurry which is left over is a very good organic fertiliser and soil conditioner.”

“7.5 Strategies for Sustainable Development … Now, with the help of photovoltaic cells, solar energy can be converted into electricity. These cells use special kind of materials to capture solar energy and then convert the energy into electricity. This technology is extremely useful for remote areas and for places where supply of power through grid or power lines is either not possible or proves very costly. …”