Water Resources

The mean annual flow in all the river basins in India is estimated to be __________.

• 1,122 cubic km

• 1,869 cubic km

• 4,000 cubic km

• 432 cubic km

An area of a shallow body of water separated from the sea by barrier islands or reefs is known as?

• backwater

• catchment area

• lagoon

• lake

Water held underground in the soil or in pores and crevices in rocks is called as:

• groundwater

• underground water

• inaccessible water

• clear water

The river basin which makes the minimum utilization of groundwater

• Ganga

• luni

• subarneka

• Brahmaputra

Which chemical has concentrated in water in Bihar?

• Salt

• Salinity

• Flouride

• Arsenic

Assertion: Water is a cyclic resource with an abundance of supplies on the globe.

Reason: The availability of freshwater varies over space and time.

• Both A and R are correct and R is the correct explanation of A

• Both A and R are correct but R is not the correct explanation of A

• A is true but R is false

• A is false but R is true

A: The large tracts of the country are deficient in rainfall and are drought-prone.

R: North-western India and Deccan Plateau constitute such areas.

• A and R both are correct and R is the correct explanation of A

• A and R both are correct and R is not the correct explanation of A

• A is true and R is false

• A is false and R is true

A: The dumping of industrial waste in rivers leads to water pollution.

R: The Yamuna is the most polluted river in the country.

• Both A and R are true and R is the correct explanation of A

• Both A and R are true and R is not the correct explanation of A

• A is true and R is false

• A is false and R is true

A: The share of the agricultural sector in total water utilisation is much higher than other sectors.

R: Agricultural accounts for most of the surface and groundwater utilization.

• both A and R are correct and R is correct explanation of A

• both A and R are correct and R is not correct explanation of A

• A is true and R is false

• A is false and R is true

A: Water gets polluted by foreign matters, such as micro-organisms, chemicals, industrials, and other wastes.

R: The Ganga and Yamuna are highly clean rivers in the country .

• both A and R are true and R is correct explanation of A

• both A and R are true and R is not correct explanation of A

• A is true and R is false

• A is false and R is true