Page 157 - SST Class 07

g Sea cliff is the steep rocky coast rising almost vertically above sea water.
g Wind more easily picks up particles on the ground that has been disturbed, such as a
construction site or a sand dune.

A. Tick (3) the correct option.

1. Which of the following is not an agent of erosion?
(a) Sea Waves (b) Glaciers (c) Rivers

2. The highest waterfall in the world is:
(a) Salto Angel (b) Victoria (c) Gersoppa
3. Ox-bow lakes are usually formed in:

(a) deserts (b) snowfields (c) U-shaped valley
4. The depositional feature of a glacier is:
(a) moraines (b) meanders (c) cirques

5. It is the steep rocky coast rising almost vertically above sea water.
(a) Sea cliff (b) Sand Dunes (c) Beaches

B. Fill in the blanks.

1. ________________ and ________________ features of the solid surface of the earth are
known as landforms.
2. Landforms are originated from ________________ processes.
3. The area drained by the river and its tributaries is called the ________________ .
4. The steep sloping segment of the swift-flowing river is called a ________________ .

5. ________________ falls on the Saraswati river in Karnataka is the highest waterfall in
India.
C. Write True or False.

1. When the river leaves the mountains and enters the plains, the flow is no
longer swift.

2. During the droughts, the river generally overflows its banks.
3. The delta formed by the Gomti and Krishna rivers is the largest in the world.
4. When glacier starts melting, its capacity to carry loads is reduced.

5. Deserts and seashores sometimes have sand dunes.
D. Name the agents of erosion of deposition responsible for the creation of the following
landform features.

1. Delta 2. River Basin 3. Sand Dune 4. Flood Plain

Social Science-7 157