Question

Ground water will not be depleted due: a) afforestation b) thermal power plant c) loss of forest and decreased rainfall d) cropping of high water demanding crops.

Answer 1

Answer:

Ground water will not be depleted in case of

Afforestation

This is because of the following reason :

• Afforestation refers to planting of various types of trees over a particular area.
• This allows water (falling on ground due to precipitation) to percolate within the soil.
• This prevents surface run-off of water
• If also helps in recharging or refilling the ground water level.
• Hence the water table rises up and clear , uncontaminated water is available.

But, in all the other given options, ground water will be depleted because, it leads to enormous use of water.

• Thermal plants use water as coolant
• Deforestation results in surface run-off
• Excessive cropping requires water.

So, option A) is the correct option.

Answer 2

Answer:

$\large\boxed{\sf{(a) Afforestation}}$

Explanation:

Ground water will not be Depleted by (a) Afforestation.

Some reasons behind this are :-

• Afforestation means plantation of more and more trees.
• Trees makes the ground water stable and mantain the water table.
• The roots of the trees bind the soil particles and stops from being erosion.
• Afforestation also leads to rainfall in stable Amount and at right time of the season.

Thus, only Afforestation doesn't leads to depletion of ground water.

On the other hand, the other three options will only lead to depletion of ground water.

• Thermal Power plants use water in excessive amount which causes depletion of ground water.
• Loss of forest and decreased rainfall will also lead to the depletion of ground water and drought.
• Cropping of high water demanding plants will suck down the water in large amount from ground and leads to ground water depletion.