Question

The local winds blow due to local variation in the temperature and pressure and influence a __________.
A. Large area
B. Medium area
C. Small area
D. Very small area

Answer 1

Hint: Local winds are winds that blow over a particular area between small low and high pressure systems. They are influenced by local geography. Proximity to an ocean, lake, or mountain range can affect local winds.

Complete answer: Winds move from a high-pressure area to a low-pressure area. During winter, there is a high-pressure region towards the north of the Himalayas. Cold dry winds blow from this area to the low-pressure regions over the oceans to the south. In summer, a low-pressure region develops over inner Asia as well as over northwestern India. As a result, the low-pressure system tempts the southeast trade winds of the southern hemisphere. On crossing the equator, these trade winds turn right towards the low-pressure areas over the Indian subcontinent, due to Coriolis force. After crossing the equator, these winds begin to blow in a south-westerly direction, and join the Indian peninsula as the southwest monsoon.
Local winds are winds that blow over a very small area. The local winds moderates the climate of nearby regions with abrupt increase or decrease in the temperature and humidity. In valleys of the mountains, two kinds of winds are exceptionally active - anabatic winds and katabatic winds. These winds are a consequence of differential heating of the land and the sea.

Hence, The correct answer is Option D.

Note: The 4 types of local winds are Sea breezes, land breezes, mountain breezes, and valley breezes. The factors that affect wind are pressure gradient forces, Coriolis Effect and Friction.