[Mission 2022] QUIZ – 2022: INSIGHTS STATIC QUIZ , 6 November 2021 – Geography – INSIGHTSIAS

Solution: b)

This area receives maximum rainfall from the south west monsoon. As a result, the Meghalaya plateau has a highly eroded surface. Cherrapunji displays a bare rocky surface devoid of any permanent vegetation cover.

Solution: c)

• The soils of Peninsular India are formed by the decomposition of rocks in situ, i.e. directly from the underlying rocks. Soils of Peninsular India are transported and re-deposited to a limited extent and are known as sedentary soils.
• Alluvial soils are formed mainly due to silt deposited by Indo-Gangetic- Brahmaputra Rivers. In coastal regions some alluvial deposits are formed due to wave action.
• Rocks of the Himalayas form the parent material. Thus the parent material of these soils is of transported origin.

Solution: d)

To understand the differences in local climates of India, we need to understand the mechanism of the following three factors:

(i) Distribution of air pressure and winds on the surface of the earth.

(ii) Upper air circulation caused by factors controlling global weather and the inflow of different air masses and jet streams.

(iii) Inflow of western cyclones generally known as disturbances during the winter season and tropical depressions during the south-west monsoon period into India, creating weather conditions favourable to rainfall.

Solution: a)

Damodar occupies the eastern margins of the Chotanagpur Plateau where it flows through a rift valley and finally joins the Hugli. Barakar is its main tributary.

The Sharda River or Mahakali River is also called Kali Gad or Kali Ganga in Uttarakhand where the river demarcates Nepal’s western border with India.

Solution: c)

Salinity changes with depth, but the way it changes depends upon the location of the sea. Salinity at the surface increases by the loss of water to ice or evaporation, or decreased by the input of fresh waters, such as from the rivers. Salinity at depth is very much fixed, because there is no way that water is ‘lost’, or the salt is ‘added.’ There is a marked difference in the salinity between the surface zones and the deep zones of the oceans. The lower salinity water rests above the higher salinity dense water. Salinity, generally, increases with depth and there is a distinct zone called the halocline, where salinity increases sharply.