Water Resources - II

This is the correct answer as both these statements are correct. Three-fourth of the earth’s surface is covered with water, but only a small proportion of it accounts for freshwater. Water is renewable yet by 2025, nearly two billion people will live in absolute water scarcity.

This is the correct answer as both statements are correct. Hydroeclectric power in India contributes approximately 22 per cent of the total electricity produced. Much of the energy required for industrial use comes from hydroelectric power.

This is the correct answer as the Bhakra – Nangal project water is in the Sutluj-Beas river basin.

This is the correct answer as the dispute if because of the multipurpose project at Koyna in Maharasthra. The objections are of Andhra Pradesh and Karnataka against Maharashtra. The agriculture and industry of both Andhra Pradesh and Karnataka will be adversely affected.

This is the correct answer as Narmada Bachao Andolan or Save Narmada Movement is against the Sardar Sarovar Dam being built across the Narmada river in Gujarat.

This is the correct answer as Mettur dam is on the river Kaveri.

This is the correct answer. In hilly and mountainous regions, people built diversion channels like the ‘guls’ or ‘kuls’ of the Western Himalayas for agriculture.

This is the correct answer. In arid and semi-arid regions, agricultural fields were converted into rain-fed storage structures that allowed the water to stand and moisten the soil like the ‘khadins’ in Jaisalmer and ‘Johads’ in other parts of Rajasthan.

This is the correct answer. This statement is correct. Inundation channels were used in Bengal to lead the flood waters of rivers towards the agricultural fields.

In the semi-arid and arid regions of Rajasthan, particularly in Bikaner, Phalodi and Barmer, almost all the houses traditionally had underground tanks or tankas for storing drinking water. The rainwater is called Palar pani in these areas and is considered the purest form of natural water, which is stored in the tankas.

Tamil Nadu is the first state in India which has made roof top rainwater harvesting structure compulsory to all the houses across the state. This is the correct answer.

This is the correct answer. In Meghalaya, a 200-year-old system of tapping stream and spring water by using bamboo pipes, is prevalent.

This is the correct answer as all these statements are correct.

This is the correct answer as this statement is correct. Nearly every household in the city of Shillong has a roof top rainwater harvesting structure.

This is the correct answer as all the statements are correct.