CBSE Class 7 Geography External Forces And Sculpting Of Landforms Worksheet

EXTERNAL FORCES AND SCULPTING OF LANDFORMS

MCQS

Question. The levelling of the earth’s surface by natural processes is called
a. Gradation
b. Wind
c. Aggradation
d. Chemical reaction
Answer. GRADATION

Question. Which of the following is not an agent of erosion
a. Wind
b. Glaciers
c. Volcanoes
d. rivers
Answer. VOLCANOES

Question. The angel fall is in
a. Canada
b. Mexico
c. Brazil
d. Venezuela
Answer. VENEZUELA

Question. The river of snow and ice which moves very slowly is called a
a. Tarn
b. Moraine
c. Glacier
d. Cirques
Answer. GLACIER

Question. A sand dune is shaped by the movement of
a. Winds
b. Ice
c. River
d. Sea waves
Answer. WINDS

Question. Which of the following is a form of a sand dune?
a. Loess
b. Barchan
c. Cirque
d. Moraine
Answer. BARCHAN

Fill in the blanks

1. The area drained by the river and its tributaries is called a ________
2. The Greek letter (delta) was first used by _________
3. The steep sloping segment of the swift flowing river is called a_________
4. Sand dunes keep shifting according to the direction of __________
Answer.  (a) RIVER BASIN   (B) HERODOTUS   (C)MEANDER   (D)WINDS

Very Short Answer

Question. What is a flood plain?
Answer. the fine alluvial soil brought by the river is deposited on the valley floor.This fertile floor is called flood plain.

Question. What is loess?
Answer. The fine dust particles deposited e

Question. Name two types of sand dunes?
Answer. Two type of sand dunes are :-
(a) Barchan (b) Seif

Question. What is the ideal height of Mushroom rocks?
Answer. The ideal height is about 25 cm to 75 cm above the ground.

Question.Define the term Cirque?
Answer. When a glacier carves deep hollows forming an arm chair shaped depression called a cirque

Short Answer

Question. How is Waterfall formed?
Answer. Waterfall is formed when the river suddenly drops in elevation over hard rocks or down a steep valley .It is important because it can be used to generate hydroelectricity.The steep sloping segement of the swift flowing river is called a rapid.For instance The jog falls pn the sharavati river in Karnataka is the highest waterfall in India.

Question. Describe the depositional work of Glacier?
Answer. Glaciers are powerful agents of erosion.As a glacier flows it carries rock fragments and gravel with it.These rocks fragments act as a tool of erosion.A glacier with the help of rock pieces,forms various features by erosion.When the glacier passes through a valley,these rock fragments rub against the sides and the valley floor.This creates U-shaped valley with a flat bottom and almost vertical sides.

Long answers

Question.Explain the erosional and depositional work of sea waves?
Answer.  The coastal areas are under the constant action of waves ,current and tides.Many large and small cracks develop on the rocky surface.In due course of time,these cracks become widen and form large cavities.With the continous action of sea waves ,these cavities develop into seea caves.When a headland projecting into the sea is attacked by the sea waves from both sides ,a thorough passage that is called sea arch.

More Question

A. MCQ:

1. Which the densest layer of the atmosphere?
a) Mesosphere
b) Stratosphere
c) Troposphere
d) Thermosphere

2. _______ is the science of the study of the earthquake
a) Seismology
b) Sociology
c) topography
d) Geology

3. Firoj Shah Bahamani ruled froma 1397 A.D. to 1422 A.D
b) 1297 A.D to 1322 A.D
c) 1197 to 1222 A.D
d) None of these

4. Who built the kirti stambha at Chittor ?
a) Rana Sangram singh
b) Rana Kumbha
c) Maharana Pratap
d) None of these

5. Which one of the following is not a Union territory?
a) Chandigarh
b) Goa
c) Delhi
d) Pondicherry

6. Who invented first printing machine with type mould?
a) Johan Gutenberg
b) Shakespeare
c) John Milton
d) John Keats

B. Answer the following in very brief:
1. What is the unit of measurement of atmospheric pressure?
2. What type of climate does India have?
3. What is the special feature of sedimentary rock?
4. Which was the main religion followed in southern kingdoms?
5. Who completed the Kutubh Minar?
6. Why is media called a watch dog of democracy?

C. Answer the following in brief:

1. Define media.
2. Enlist three functions of councils of ministers of state.
3. Define tropopause.
4. How did Iltutmish save Delhi from the wrath of Chenghis khan.

D. Long Answers:

1. What are the major soil types found in India? Give one important features of each.
2. What do you know about the origin of Rajputs?
3. Describe the powers of the Governor of the State.
F.a On an Outline map of the world mark and name 2 areas of each type of vegetation belt.
b. Take an outline map of India and label the areas of major soil types on it.