Insights Static Quiz -262, 2019–Geography

Solution: d)

A rift valley is a lowland region that forms where Earth’s tectonic plates move apart, or rift. Narmada flows in a rift valley flowing west between the Satpura and Vindhya ranges.

The other rivers which flow through rift valley include Damodar River in Chota Nagpur Plateau and Tapti. The Tapti River and Mahi River also flow through rift valleys, but between different ranges.

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: c)

Mixed farming is growing crops and rearing livestock simultaneously.

Mixed cropping is growing two or more crops simultaneously on the same piece of land, for example, wheat gram, or wheat mustard, or groundnut sunflower. This reduces risk and gives some insurance against failure of one of the crops.

Different ways of growing crops can be used to give maximum benefit.

Solution: d)

Sambhar has been designated as a Ramsar site (recognized wetland of international importance) because the wetland is a key wintering area for tens of thousands of flamingos and other birds that migrate from northern Asia.

The specialized algae and bacteria growing in the lake provide striking water colours and support the lake ecology that, in turn, sustains the migrating waterfowl.

It is not part of the Ganga river basin area and is geographically a separate land locked river basin. It is the source of most of Rajasthan’s salt production.