The northern plains are lowlands to the south of the Himalaya. Rivers coming down from the Himalaya break off and carry away rocks. The rocks rub against each other and break to form a soil called alluvium which is very good for growing plants. When the rivers flood, this rich soil spreads over the northern plains and make it fertile.
What is a delta? Name one delta.
When a river comes near the sea, it slows down and deposits a lot of soil to form islands. The landform thus formed when the river enters the sea is called delta. For example, the Sunderban delta.
Give two reasons why there are many large cities in the northern plains.
1. Many kinds of crops such as wheat, rice and sugar cane are grown in the fertile northern plains.
2. It is easy to build roads, railways and building on the flat land of northern plains.
What landforms form the boundaries of the Deccan Plateau?
Eastern ghats on the east and western ghats on the west forms the boundaries of the Deccan Plateau.
How do the people of the coastal plains make a living?
The land of coastal plains are fertile. Farmers grow plenty of rice and coconuts. Many people also earn their living by fishing.
What is a glacier? Why do you think glaciers are important?
A glacier is a very large mass of ice that moves slowly down a slope. Glaciers are important because when they move to the lower, warmer parts of a mountain, they melt to form rivers. For example, Ganga rises from a glacier called Gangotri.
What are the three main ranges of the Himalayas?
The three main ranges of the Himalayas are the Great Himalaya, the Lesser Himalaya and the Outer Himalaya.
Name two natural resources of the peninsular plateau.
Coal and iron.
What is sand dune?
The sand in the desert gets blown around by the wind and forms hills called sand dunes.
B. TRUE OR FALSE.
Mount Everest is the highest peak in the world.
The Ganga rises from a glacier.
The Eastern Ghats and the Western Ghats are coastal plains.
Hyderabad is in the Deccan Plateau.
The hills of the Vindhya range are covered with snow.
C. FILL IN THE BLANKS.
________ grows well in the eastern Himalaya.
________ are branches of a river that flow away from it.
________ grows well on black soil.
In a desert, you may find a __________.
The Andaman and Nicobar Islands are in the ___________.