Geography Class 7th

41. Natural agents scratching the surfaces of earth:

A) Denudation

B) Weathering


C) Erosion

D) Removal

42. Erosion can take place due to ______ agents.

A) One

B) Two

C) Four

D) Six


43. Biltora Glacier is _______ miles long

A) 23

B) 25

C) 36

D) 42

44. ______%_ land has become due to erosion.

A) 10

B) 20

C) 40

D) 60


45. _______ is blanket of air surrounding the earth.

A) Biosphere

B) Atmosphere

C) Lithosphere


D) Geosphere

46. Ozone protects the earth From:

A) Infrared Light

B) Sunlight

C) UV light

D) None of the above


47. Skin cancer is caused by:

A) Infrared Light

B) Sunlight

C) UV light

D) None of the above


48. The lowest layer of atmosphere is :

A) Troposphere

B) Exosphere


C) Mesosphere

D) Stratosphere

49. The average height of Troposphere is:

A) 5 km

B) 10 km

C) 12km

D) 17km


50. The height of troposphere at the equator is:

A) 5 km

B) 10 km

C) 16km

D) 17km

51. The height of troposphere at the poles is :

A) 5 km

B) 10 km

C) 8km

D) 17km

52. The Second layer of atmosphere is:

A) Exosphere

B) Thermosphere

C) Stratosphere

D) Troposphere.


53. The height of Stratosphere is:

A) 13 km

B) 21 km

C) 48 km

D) 24 km

54. The main component of Stratosphere is:

A) Clouds

B) Ozone

C) Earth


D) None of the above

55. The height of Mesosphere is _______ km.

A) 34

B) 50

C) 45

D) 80

56. The Coldest layer of atmosphere ___________.

A) Troposphere

B) Stratosphere

C) Mesosphere

D) Exosphere

57. The Exosphere starts from ________ and goes to ______.

A) 67 , 80

B) 80, 100

C) 80, Space

D) 100,150

58. The hotness or coldness of a body is called as:

A) Warmth

B) Coldness

C) Temperature

D) None of the above

59. ________ is used to measure the temperature.

A) Ruler

B) Thermometer

C) Protector


D) Oscilloscope

60. Which of the following scale is used to measure temperature:

A) oC

B) o F

C) Both A and B

D) None of the above