geomorphology & earth landforms section 4 MCQ Questions & Answers Detailed Explanation

Answer: (d)

Reh refers to a mixture of soluble sodium salts appearing as efflorescence on the ground in arid or semiarid regions in India. It covers the land in the form of a white layer. It is also known as Kallar.

Answer: (b)

The Earth is farthest away from the Sun, at the aphelion point, two weeks after the June Solstice, when the Northern Hemisphere is enjoying warm summer months.

Conversely, it is closest to the Sun, or at the perihelion, about two weeks after the December Solstice, when it is winter in the Northern Hemisphere.

Answer: (a)

Answer: (a)

Answer: (d)

Dunes are features associated with wind deposition. Dunes are infact hills of sand formed by the accumulation of sand and shaped by the movement of winds.

Answer: (a)

Even though most of the Earth's surface is water, only 1% of it is fresh usable water. Ninety-seven per cent of the Earth's water is saltwater, which contains too many minerals for humans to use untreated.

Two per cent of our water is 'locked up' in ice caps and glaciers, leaving only one per cent as usable freshwater. Groundwater comprises 0.62 per cent of water, followed by Freshwater Lakes: 0.009 per cent; and rivers: 0.0001 per cent.