Class 7 Major Landforms

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Class 7 chapter 4 Geography mcq

Tick (✓) the correct option.

1. Which is not an erosional feature of a glacier?

a. Cirque
c. Leaves✓
b. Tarn
d. None of these 

2-The mushroom rocks are found in.

 a. River valleys
b. Deserts✓
c. Mountains
 d None of above

3. Ox-bow lakes are found in.

a. Glaciers
c. Deserts
b. River valley✓
d. Valley

4-The depositional feature of a glacier is.
a.Flood plain
b. Beachc. 
c.Glacier morained. ✓
d.Meanders

5-Deep cracks formed on the
surface of the glaciers are called.
a- Cirques
b- Moraines
c- Crevasses✓
d -None of these

Fill in the blanks.

1. The sea waves extend outer from the area of their coast

2. A glacier is a large body of ice.

3. The work of the wind is generally associated with the arid desert regions.

4. The ox-bow lake is a u-shaped water body.

5. The Ganga and the Bramhaputra rivers from the largest deltas in the world.

C. State whether the following statements are true or false.

1. The exogenic forces are responsible for building the mountains. ( F )

2 The Angel Falls in South America is the highest waterfall in the world. ( T )

3. The glaciers are narrowest at the sources and broadest where they end. ( F )

4 The mushroom rocks are developed in the coastal areas due to the erosional work of sea waves.( F )

5. Beaches are formed in the coastal areas when the winds are of low velocity.( T )

D. Match the following.

Column A                   Column B
1. Glacier       -         River of ice
2. Meanders   -        Rivers
3. Beach         -         Sea shore
4. Sand dunes    -     Deserts
5.Water fall - fall at steep angle

E. Short answer type questions.

Q1:Define weathering and erosion.
Ans:  
Weathering: The process of disintegration or decay of solid rocks.
Erosion: The wearing down of rocks by the agents of gradation and transportation of the eroded material.

2. What are flood plains? Why are flood plains very fertile?
Ans: A floodplains  is an area of land adjacent to a river .
Flood plains are naturally very fertile due to the river sediment. 

3. What kind of erosion leads to the formation of beaches?
 A beach is a coastal landform that forms when the sea waves deposit sediments along the sea shore.

4. What are mushroom rocks? Why are they called so?
Mushroom rocks: Mushroom rocks also called rock pedestals are found in
deserts. These are formed when the winds erode the lower section of the
rock more than the upper part and the rocks take the form of a mushroom with a narrower base and wider top.

5. What are ox-bow lakes?
Ans: An ox-bow lake is a U-shaped water body. It is formed when a wide meander is cut off from the main stream of a river to create a cut-off lake.            

6. How is soil formed?
Soil is the thin layer of material covering the earth's surface and is formed from the weathering of rocks.

                   Cirque

                        Torn

              Sundarban Delta

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