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41
The process of particle detachment by moving glacial ice is called
Discuss
Answer & Solution
Answer: Option A
Solution:
The process of particle detachment by moving glacial ice is called plucking.
42
The points in the ecliptic farthest north and south of the celestial equator are called
Discuss
Answer & Solution
Answer: Option A
Solution:
For observers in the northern hemisphere, the farthest northern point above the celestial equator is the summer solstice, and the farthest southern point is the winter solstice. The word "solstice'' means "sun standing still'' because the Sun stops moving northward or southward at those points on the ecliptic.
43
Which of the following is concerned with the description and mapping of the main features of the universe?
Discuss
Answer & Solution
Answer: Option A
Solution:
Cosmography is concerned with the description and mapping of the main features of the universe.
44
The process that creates the deep oceanic trenches is called
Discuss
Answer & Solution
Answer: Option A
Solution:
Trenches are formed by subduction, a geophysical process in which two or more of Earth's tectonic plates converge and the older, denser plate is pushed beneath the lighter plate and deep into the mantle, causing the seafloor and outermost crust (the lithosphere) to bend and form a steep, V-shaped depression.
45
The rainfall in the peninsular interior averages about
Discuss
Answer & Solution
Answer: Option A
Solution:
The rainfall in the peninsular interior averages about 650 mm a year.
46
The Palaeozoic era contains ____ time periods.
Discuss
Answer & Solution
Answer: Option A
Solution:
The Palaeozoic era contains six time periods.
47
The northern portion of the western coastal plain is called
Discuss
Answer & Solution
Answer: Option A
Solution:
The region consists of three sections: the Northern part of the coast is called the Konkan (Mumbai-Goa), the central stretch is called the Kanara, while the southern stretch is referred to as the Malabar Coast.
48
The ozone layer at high altitude contains
Discuss
Answer & Solution
Answer: Option C
Solution:
The ozone layer at high altitude contains mixture of atomic oxygen (O), ordinary oxygen (O2) and Ozone (O3).
49
The number of a topographic map is 47A/16/NW. Its scale must be
Discuss
Answer & Solution
Answer: Option D
Solution:
The number of a topographic map is 47A/16/NW. Its scale must be 1 : 25,000.
50
The right ascension is the equivalent of longitude on the celestial sphere, and it is given in the units of
Discuss
Answer & Solution
Answer: Option B
Solution:
The right ascension is the equivalent of longitude on the celestial sphere, and it is given in the units of time-hours, minutes and seconds.