81). Match the following
Date | Conditions in Northern Hemisphere | A. March 21st | 1. Winter Solstice | B. June 21st | 2. Autumnal Equinox | C. September 21st | 3. Summer Solstice | D. December 22nd | 4. Vernal Equinox |
A B C D
A). 1 2 3 4 |
B). 1 3 4 2 |
C). 2 3 1 4 |
D). 4 3 2 1 |
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82). The word used to describe the shape of the earth is:
A). flat |
B). circle |
C). sphere |
D). oblate spheroid |
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83). The mean radius of the earth is approximately:
A). 3200 km |
B). 6400 km |
C). 9600 km |
D). 12800 km |
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84). What is the correct sequence of the following layers of the Earth as one moves from the surface to the interior: 1. Mantle 2, Crust 3. Core Select the correct answer by using the codes given below:
A). 1, 2, 3 |
B). 1, 3, 2 |
C). 2, 1, 3 |
D). 3, 1, 2 |
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85). Which of the following latitudes is the longest?
A). \( \Large 0 ^{\circ} \) |
B). \( \Large 66 ^{\circ} N \) |
C). \( \Large 80 ^{\circ} N \) |
D). \( \Large 23 ^{\circ} N \) |
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86). Summer Solstice in the Southern Hemisphere occurs on:
A). 12/22/2018 |
B). 9/23/2018 |
C). 6/21/2018 |
D). 3/21/2018 |
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87). One degree of the circumference of the earth measures(approx.):
A). 100 km |
B). 111 km |
C). 151 km |
D). 175 km |
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88). Spring tides occur when:
A). the moon is nearest to the earth |
B). the moon is farthest from the earth |
C). the moon, the sun and the earth are at right angles with the earth at the apex |
D). the moon, the sun and the earth are in the same line |
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89). Variation in duration of day and night is due to: 1. rotation of earth on its axis 2. revolution of earth around the sun. 3. inclination of earth at an angle of 66%
A). 1 and 2 |
B). 2 and 3 |
C). 1 and 3 |
D). 1, 2 and 3 |
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90). Days and nights are caused by: 1. rotation of the earth on its axis 2. revolution of the earth around the sun 3. inclination of the earth's axis
A). only 1 is correct |
B). 1 and 2 are correct |
C). 2 and 3 are correct |
D). all are correct |
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