Social Science Question(1 Marks)

Weather refers to the state of the atmosphere over an area at any point of time.

Mumbai, since it is located very close to the Arabian sea.

The cold weather season begins in mid-November in northern India.

The maritime climate in Kerala is due to its closeness or proximity to the Arabian sea.

El Nino is a warm ocean current that flows past the Peruvian coast in place of cold Peruvian current every 2 to 5 years.

These jet streams are located approximately over 27° -30° north latitude, therefore, they are known as subtropical westerly jet streams.

The Western cyclonic disturbances are weather phenomena of the winter months brought in by the westerly flow from the Mediterranean region.

The word monsoon is derived from the Arabic word ‘Mausim’ which literally means season. Monsoon refers to the seasonal reversal in the wind
direction during a year.

These are strong gusty, hot dry winds blowing during the day over the north and northwestern India.

The presence of the high pressure area, east of Madagascar approximately at 20°S over the Indian Ocean, its intensity and the position of this high pressure area also affects the Indian monsoon.

The Himalayas prevent the cold winds from central Asia from entering the sub-continent. It is because of these mountains that this sub-continent experiences comparatively milder winters as compared to central Asia.

The annual precipitation is over 400 cms in Meghalaya and less than 10 cms in Ladakh and western Rajasthan.

The monsoon arrives at the southern tip of the Indian peninsula generally by the first week of June.

The interior part of the country is characterised by more seasonal contrasts.

Tropic of Cancer.

As one goes from the surface of the earth to higher altitudes, the atmosphere becomes less dense and temperature decreases.

1. Arabian sea Branch
2. Bay of Bengal Branch

Kaal means destruction or calamity brought in the month of Baisakh. It is known as ‘Kaal Baisakhi’. It occurs in West Bengal and are pre-monsoon showers.

Dust storms blow in this month. These storms bring temporary relief as they lower the temperature.

India's climate is tropical as well as sub-tropical.

The two branches of the monsoon are:

1. The Arabian Sea Branch.
2. The Bay of Bengal Branch.

The Inter-Tropical Convergence Zone (ITCZ) is a broad trough of low pressure in equatorial latitudes. This is where the north-east and the south-east trade winds converge.

Climate regulates all because if the climate is not then our health also lies down and if the climate is good then our living standard also increases.

They play an important role in the cultivation of rabi crops.

By the beginning of October, the monsoon withdraws from the northern plains of India.

Temperature, atmospheric pressure, winds, humidity and precipitation are the elements of weather and climate.