Ananda Marga school class 3 geography

6. Answer the following questions :-

a) Tributaries and Distributaries:

Tributaries

are smaller streams or rivers that flow into a larger river or lake. Example: Yamuna is a tributary of the Ganga.

Distributaries

are branches of a river that flow away from the main channel, often in a delta region, and do not rejoin the main river. Example: Hooghly River is a distributary of the Ganga.

b) Difference between a mountain and a hill:

Mountain:

A large natural elevation of the earth's surface rising abruptly from the surrounding level, typically with a peak or summit. Generally, mountains are significantly higher and steeper than hills.

Hill:

A naturally raised area of land, smaller than a mountain, typically with a rounded top. Hills are generally lower in elevation and less steep than mountains.

7. Write short notes on (any two)

a) Desert:

A desert is a barren or desolate area, often characterized by extreme temperatures (hot or cold) and very low precipitation.

Deserts have sparse vegetation adapted to arid conditions and unique animal life.

Examples include the Sahara Desert (hot) and the Gobi Desert (cold).

b) Plateau:

A plateau is a large, flat area of land that is raised significantly above the surrounding land, often with steep sides.

Plateaus can be formed by volcanic activity, erosion, or tectonic uplift.

Examples include the Deccan Plateau in India and the Tibetan Plateau.

c) Plain:

A plain is a large area of flat or gently rolling land with minimal changes in elevation.

Plains are often formed by deposition of sediments by rivers or glaciers.

They are typically fertile and suitable for agriculture, and are often densely populated.

Examples include the Great Plains of North America and the Indo-Gangetic Plain in India.