Here are 40 multiple-choice questions (MCQs) of chapter our changing Earth class 7 cbse:
1. The process of wearing away the Earth's surface is called:
a) Erosion
b) Deposition
c) Transportation
d) Weathering
2. Sudden movements like earthquakes and volcanoes are caused by:
a) External forces
b) Internal forces
c) Erosion
d) Weathering
3. The breaking down of rocks into smaller particles is known as:
a) Deposition
b) Erosion
c) Weathering
d) Transportation
4. Which of these is not an agent of erosion?
a) River
b) Wind
c) Sun
d) Glacier
5. The point inside the Earth where an earthquake originates is called:
a) Epicenter
b) Focus
c) Crater
d) Magma chamber
6. The place on the surface directly above the earthquake’s origin is called:
a) Focus
b) Crater
c) Epicenter
d) Magma chamber
7. What are the vibrations caused by an earthquake called?
a) Volcanic waves
b) Tsunami
c) Seismic waves
d) Storm waves
8. The instrument used to measure earthquake intensity is called:
a) Thermometer
b) Seismograph
c) Barometer
d) Altimeter
9. What is the scale used to measure the magnitude of an earthquake?
a) Richter scale
b) Barometer scale
c) Seismograph scale
d) Beaufort scale
10. Which of the following landforms is formed by river deposition?
a) Waterfall
b) Delta
c) Canyon
d) Gorge
11. A crescent-shaped sand dune is called:
a) Barchan
b) Moraine
c) Ox-bow lake
d) Delta
12. Which agent of erosion is most active in deserts?
a) Water
b) Wind
c) Glaciers
d) Waves
13. The most common cause of an earthquake is:
a) Erosion
b) Sudden movements of the Earth's plates
c) Heavy rainfall
d) Volcanoes
14. A river erodes its bed and banks with the help of:
a) Ice
b) Glaciers
c) Running water
d) Wind
15. The deposition of soil, sand, and silt by rivers leads to the formation of:
a) Waterfalls
b) Canyons
c) Floodplains
d) Cliffs
16. What is formed when a river meander is cut off from the main channel?
a) Oxbow lake
b) Waterfall
c) Gorge
d) Canyon
17. Which of the following is an effect of an earthquake?
a) Formation of new landforms
b) Tsunami
c) Landslides
d) All of the above
18. Which process leads to the widening of river valleys?
a) Weathering
b) Erosion
c) Deposition
d) Earthquakes
19. Wind erosion is most common in:
a) Coastal areas
b) Deserts
c) Riverbanks
d) Glaciers
20. What is a glacier?
a) A river of sand
b) A large body of ice moving slowly
c) A sea wave
d) A volcanic mountain
21. A feature formed by wind erosion is called:
a) Mushroom rock
b) Delta
c) Waterfall
d) Canyon
22. How are beaches formed?
a) By deposition of sand by waves
b) By earthquake movements
c) By river erosion
d) By volcanic activity
23. What happens when magma comes out from the Earth’s surface?
a) Landslide
b) Earthquake
c) Volcano
d) Flood
24. Which one of the following is a depositional feature of glaciers?
a) Moraine
b) Canyon
c) Mushroom rock
d) Cliff
25. The Earth’s surface is continuously changing due to:
a) Internal forces
b) External forces
c) Both a and b
d) None of these
26. What is the term for the movement of sand by wind?
a) Weathering
b) Erosion
c) Deflation
d) Transportation
27. Which of the following is a cause of landslides?
a) Heavy rainfall
b) Earthquakes
c) Deforestation
d) All of these
28. Which of the following is an example of an external force?
a) Earthquake
b) Volcanic eruption
c) Weathering
d) Plate movement
29. What is a tsunami?
a) Large ocean wave caused by an earthquake
b) A type of glacier
c) A type of earthquake
d) A desert storm
30. Which of the following is a type of mass movement?
a) Sand dune formation
b) Landslide
c) Flood
d) Earthquake
31. What is formed when a river erodes its banks deeply?
a) Waterfall
b) Gorge
c) Delta
d) Beach
32. The process of deposition by a river takes place mainly in:
a) Upper course
b) Middle course
c) Lower course
d) Throughout its course
33. The most destructive part of an earthquake is:
a) Focus
b) Epicenter
c) Seismograph
d) Magma chamber
34. What is the main reason for coastal erosion?
a) Wind
b) Waves
c) Glaciers
d) Earthquakes
35. Sand dunes are formed by:
a) Rivers
b) Wind
c) Glaciers
d) Waves
36. What is a delta?
a) A mountain
b) A landform formed at the mouth of a river
c) A sea wave
d) A type of volcano
37. What is the most important factor in changing the Earth’s surface?
a) Wind
b) Water
c) Plate movement
d) Human activities
38. Which one of the following is an example of deposition?
a) Weathering of rocks
b) Formation of a sand dune
c) Erosion by a river
d) Earthquake
39. The Ring of Fire is associated with:
a) Tornadoes
b) Earthquakes and volcanoes
c) Tsunamis
d) Sand dunes
40. Which one of the following is not an example of weathering?
a) Freezing and thawing of rocks
b) Wind breaking rocks
c) River cutting through a valley
d) Plants growing in rock cracks
