49.
The periodic rise and fall of the sea level on the earth, gives rise to tides. This is related to
A. the position of the moon with reference to the earth and the gravitational pull exerted mainly by the moon and partly by the sun
B. infrared rays from the sun
C. ultraviolet rays from the sun
D. None of the above
Answer & Explanation
Answer: Option A
Explanation:
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50.
The planets that are called superior planets are
A. Mercury, Venus, Earth, Mars and Jupiter
B. Jupiter, Saturn, Uranus, Neptune and Pluto
C. Mercury, Pluto, Venus, Neptune and Earth
D. Earth, Uranus, Mars, Saturn and Jupiter
Answer & Explanation
Answer: Option B
Explanation:
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51.
The phenomenon associated with collision and subduction of the planet is
A. volcanoes
B. island arcs
C. earthquakes
D. All of the above
Answer & Explanation
Answer: Option D
Explanation:
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52.
The products of ____ are a major source of sediments for erosion and ____
A. weathering, deposition
B. deposition, weathering
C. rocks, weathering
D. rocks, deposition
Answer & Explanation
Answer: Option A
Explanation:
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53.
The polar regions of earth cannot support forest growth because
A. the growing season is short in these areas
B. the ground is often frozen or snow or ice covered
C. the rainfall is very low
D. All of these factors.
Answer & Explanation
Answer: Option D
Explanation:
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54.
The part of the earth and thin layer of air above its surface, which support life on earth, are referred to as
A. stratosphere B. ionosphere
C. biosphere D. mesosphere
Answer & Explanation
Answer: Option C
Explanation:
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