Atmosphere || Layers of Atmosphere Check details with pdf
46. Which of the following is caused by the combined effects of the gravitational forces exerted by the Moon and the Sun on sea levels?
(A) Currents
(B) Runoff
(C) Tides
D) Waves
Ans.(C)
47. Tides are caused by the gravitational forces of-
(A) Of Earth on Moon
B) Of Earth on Sun
(C) Of Sun and Moon on Earth
(D) Of Moon on Earth
Ans.(C)
48. When does tides rise in sea?
(A) Only on lunar day
(B) Full Moon and half Moon
(C) When Moon is on first phase
(D) Only half Moon
Ans. (B)
49. Which of the following celestial body contains Helium-4 in abundance?
(A) Earth
(B) Moon
(C) Venus
(D) Saturn
Ans. (A)
50. The Earth is tilted on its axis-
(A)23.5 degree
(B)22.5 degree
(C)21.5 degree
(D)20 degree
Ans. (A)
51. In how much time, Earth rotates once on its axis?
(A) 23 hours 30 minutes
(B) 23 hours 56 minutes 4.9 sec
(C) 23 hours 10 minutes 2 sec
(D) 24 hours
Ans. (B)
52. Day and night are formed-
(A) Due to the shape of the orbit of Earth
(B) Due to the motion of revolution
(C) Due to the speed of rotaion
(D) None of these
Ans. (C)
53. Days and nights are similar here-
(A) Poles
(B) Main time zone
(C) Antarctica
(D) Equator
Ans. (D)
54. What is “Supernova”?
(A) Comet
(B) Asteroid
(C) Meteor
(D) Black Hole
Ans. (D)
55. What is the circumference of the Earth?
(A) 13,000km
(B) 20,000km
(C) 25,000km
(D) 40,000km
Ans. (D)
56. When and where did the concept of the Earth Hour started?
(A) June, 2007 in Christchurch, New Zealand
(B) May, 2009 in Colombo, Srilanka
(C) April, 2008 in Tokyo, Japan
(D) March, 2007 in Sydney, Australia
Ans.(D)
57. How many Geo-synchronous satellites are required for uninterrupted world broadcasting?
(A) 3
(B) 4
(C) 2
D) 1
Ans. (A)
58. The study of the processes of atmosphere is called as-
(A) Astrology
(B) Meteorology
(C) Seismology
(D) Astronomy
Ans.(B)
59. Which of the following depletes the UV radiation on the Earth?
(A) Carbon monoxide
(B) Carbon dioxide
(C) Ozone
(D) Oxygen
Ans. (C)
60. Which is the lowest layer of Atmosphere?
(A) Troposphere
(B) Stratosphere
(C) Mesosphere
(D) Exosphere
Ans.(A)
61. Where do all meteorological incidents occur?
(A) Stratosphere
(B) Troposphere
(C) Ionosphere
(D) Exosphere
Ans.(B)
62. What is the name of the layer closest to the Earth?
(A) Ionosphere
(B) Stratosphere
(C) Troposphere
(D) Exosphere
Ans. (C)
63. Which gas is found in maximum quantity in lower atmosphere?
(A) Hydrogen
(B) Carbon dioxide
(C) Oxygen
(D) Nitrogen
Ans. (D)
64. What is the percentage of Nitrogen in atmosphere of the Earth?
(A) 0.94
(B) 0.03
(C) 78.03
(D) 85.02
Ans. (C)
67. What is the name of the layer above Earth’ surface which is located at the height of 8km from poles and 16km from the equator?
(A) Mesosphere
(B) Atmosphere
(C) Troposphere
(D) Stratosphere
Ans. (C)
65. The total number of layers above Earth are-
(A) 4 (B) 5 (C) 2 (D) 3
Ans. (B)
66. Choose the correct option with the correct sequence of the layers of atmosphere-
(A) Mesophere, Ionosphere, Exosphere, Troposphere, Stratosphere
(B) Ionosphere, Exosphere, Mesosphere, Stratosphere, Troposphere
(C) Exosphere, Troposphere, Ionosphere, Mesosphere, Stratosphere
(D) Troposphere, Stratosphere, Mesosphere, Ionosphere, Exosphere
Ans. (D)
67. Which of the following is located at the minimum height from the Earth?
(A) Stratosphere
(B) Mesosphere
(C) Thermosphere
(D) Troposphere
Ans.(D)
68. The layer of atmosphere which reflects radio waves is-
(A) Ionosphere
(B) Troposphere
(C) Stratosphere
(D) Exosphere
Ans.(A)
69. At which height, the gaseous surrounding has covered the Earth’s atmosphere?
(A) 100km
(B) 150km
(C) 200km
(D) 300km
Ans.(D)
70. The heat from Sun to Earth is called as-
(A) Temperature Radiation
(B) Insolation
(C) Emitted Heat
(D) Solar Radiation
Ans. (D)