Climate And Weather In Indian Geography MCQ Question and Answer | Geography MCQ Question

Monsoon retreat is marked by clear sky. North east monsoon winds bring rainfall over the coastal region of Tamil Nadu while the retreating monsoon is marked by clear skies and rise in temperature.

The Western Ghats are more elevated and continuous as compared to Eastern Ghats, that is why they (Western Ghats) block the moisture containing winds and receive more rainfall. They also lie opposite to moisture laden monsoon winds.

The rains along the western coast of India are orographic. Orographic or relief rainfall is caused when masses of air are forced up the side of elevated land formations, such as large mountains (often referred to as an upslope effect). The lift of the air up the side of the mountain results in adiabatic cooling, and ultimately condensation and precipitation.

There is heavy rainfall on the western coast of India but very little in the Deccan because the Deccan plateau is situated in the rain shadow of the Western Ghats. The Deccan Plateau to the east of the Western Ghats receives significantly less rainfall than the coasts. As the summer (wet) monsoons approach the West Coast of India, they rise up the western Ghats (mountains) and the air cools. This cool air is less able to hold moisture and it is released as rainfall.

Mumbai and Pune have the largest annual average rain difference as compared to the other three pairs. Mumbai/ Bombay receives on balance 2168 mm (85.4 in) of rainfall per year, or 180.7 mm (7.1 in) per month. In Pune, the monsoon lasts from June to October, with moderate rainfall and temperatures ranging from 22 to 28° C (72 to 82° F).

Delhi gets winter rainfall due to Western distubances. Western disturbances, specifically the ones in winter, bring moderate to heavy rain in low-lying areas and heavy snow to mountainous areas of the Indian Subcontinent. During the winters, the low pressure belt of temperate zone slides down over the Northern India. Due to which the feeble temperate cyclones originating over Mediterranean Sea move along western jet stream strikes North India.

0.35% of Indian terrain receive annual rainfall below 75 cm. The proportion of area which receives annual rainfall less than 75 cm. is one third. Major part of country included in this proportion are subtropical arid and subtropical semi arid regions of India. e.g. Gujarat, Rajasthan, parts of Punjab

Farmer plough his fields in summer to prevent the surface from becoming hard. Summer ploughing improves soil structure due to alternate drying and cooling. Tillage improves soil aeration which helps in multiplication of micro-organisms.

Punjab receives substantial rain during the winter month of January. It also receives rain from the retreating monsoons. In addition to this it also receives rain from the North East Monsoons in winter, but the total amount of rain received is comparatively less as these winds are less forceful and carry less water.

Due to excessive heating in north-western India in summer season, a low pressure zone is created over north-western India. As air travels from high pressure area to low pressure area southwest monsoon winds are attracted towards this part from adjacent Indian ocean.