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Very Short Question and Answers - Climatic Controls


Q 1.
What are the six major controls of climate?

Ans:

The six major controls of climate are latitude, altitude, pressure and wind systems, distance from the sea (continentality), ocean currents, and relief features.

Q 2.
How does latitude affect temperature?

Ans:

The amount of solar energy received varies according to latitude, leading to a general decrease in air temperature from the equator towards the poles.

Q 3.
What happens to temperature as altitude increases?

Ans:

As one ascends in altitude, the atmosphere becomes less dense, and temperature decreases.

Q 4.
Why are hills cooler during summers?

Ans:

Hills are cooler during summers due to the decrease in temperature with increasing altitude.

Q 5.
What is continentality?

Ans:

Continentality refers to the phenomenon where areas far from the sea experience extreme weather conditions, such as very hot summers and very cold winters.

Q 6.
How do ocean currents affect coastal climate?

Ans:

Ocean currents along with onshore winds affect the climate of coastal areas by warming or cooling them based on the temperature of the currents.

Q 7.
Why do most deserts occur in the western margins of continents?

Ans:

Most of the world's deserts are located in the western margins of continents in the subtropics due to high pressure and descending air which inhibits rainfall.

Q 8.
What role do high mountains play in climate?

Ans:

High mountains act as barriers for cold or hot winds and can cause precipitation if they lie in the path of rain-bearing winds.

Q 9.
How does the Tropic of Cancer influence India’s climate?

Ans:

The Tropic of Cancer passes through the middle of India, dividing it into tropical and subtropical climatic zones.

Q 10.
What climatic conditions are influenced by pressure and winds in India?

Ans:

The climatic conditions in India are governed by pressure and surface winds, upper air circulation, and cyclonic disturbances.

Q 11.
What is the significance of the Coriolis force?

Ans:

The Coriolis force causes winds to deflect to the right in the northern hemisphere and to the left in the southern hemisphere, influencing weather patterns.

Q 12.
How do winter winds affect India’s climate?

Ans:

During winter, high-pressure areas north of the Himalayas cause cold dry winds to blow towards the low-pressure areas over the oceans, influencing the climate.

Q 13.
What happens to wind direction in the summer over India?

Ans:

In summer, a low-pressure area develops over interior Asia and northwestern India, causing a reversal in the direction of winds.

Q 14.
What are the Southwest Monsoon winds?

Ans:

The Southwest Monsoon winds are winds that blow from high-pressure areas over the southern Indian Ocean, crossing the equator and bringing moisture to India.

Q 15.
Why would India have been arid without certain climatic factors?

Ans:

India might have been arid due to the presence of north-easterly winds, which originate from land and carry little moisture.

Q 16.
What is the effect of the Himalayas on winters in India?

Ans:

The Himalayas prevent cold winds from Central Asia from entering India, leading to milder winters in the subcontinent.

Q 17.
Why is the climate of India characterized by both tropical and subtropical features?

Ans:

Due to its geographical position with half the country south of the Tropic of Cancer and the other half in the subtropical region, India exhibits both tropical and subtropical climate characteristics.

Q 18.
How does the relief of an area influence its climate?

Ans:

Relief features, such as mountains, can block winds, create rain shadows, and impact temperature, thus significantly influencing the local climate.

Q 19.
What factors determine the altitude of a geographical area?

Ans:

The altitude of a geographical area is determined by the distance above sea level, which can be influenced by natural formations such as mountains and valleys.

Q 20.
How do warm and cold ocean currents affect coastal areas?

Ans:

Warm ocean currents raise the temperature of coastal areas while cold currents lower it, significantly affecting the local climate.