NCERT Geography - Our Changing Earth - Chapter 3 Class 7

1. The __________ is broken into a number of plates known as the __________ plates.

Atmosphere, Atmospheric
Lithosphere, Lithospheric
Biosphere, Biospheric
Hydrosphere, Hydrospheric

2. The plates move around just a few __________ each year.

centimetres
millimetres
decametres
kilometres

3. The forces which act in the interior of the earth are called as __________ forces.

Erosional and Depositional
Exogenic
Diastrophic
Endogenic

4. The forces that work on the surface of the earth are called as _________ forces.

Endogenic
Sudden
Exogenic
Diastrophic

5. These vibrations can travel all round the earth. What are these vibrations?

Tsunamis
Earthquake
Landslides
Flood

6. _________ is the breaking up of the rocks on the earth’s surface.

Weathering
Erosion
Volcanic eruptions
Earthquakes

7. When the river tumbles at steep angle over very hard rocks or down a steep valley side it forms a __________.

levees
Meanders
Floodplain
waterfall

8. As the river enters the plain it twists and turns forming large bends known as ___________.

meanders
levees
waterfall
floodplain

9. Epicentre is the place on the surface -?

above the focus
below the focus
on the focus
beside the focus

10. Glaciers are '________' of ice which erode the landscape by bulldozing soil and stones to expose the solid rock below.

blocks
rivers
gases
virtual images

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