universe & solar system section 7 Practice Questions Answers Test with Solutions & More Shortcuts

Question : 46

Magma that is more granitic tends to be very explosive because

a) of relatively lower water content

b) of relatively lower gases content

c) of relatively higher gases content

d) of relatively higher water content

Answer: (d)

Question : 47

Consider the following two statements, one labelled as the Assertion (A) and other as Reason (R). Examine these two statements carefully and select the correct answer by using the codes given below:
Assertion (A):
Venus is the brightest object in the sky after the Sun.
Reason (R):
Venus is the second planet from the Sun in our solar system. Codes:

a) A is true, but R is false.

b) A is false, but R is true.

c) Both A and R are true, but R is not the correct explanation of A.

d) Both A and R are true and R is the correct explanation of A.

Answer: (d)

Venus is the brightest object in the sky after the sun. Venus is the second planet from the sun in our solar system.

Question : 48

Which planet was named after the Roman God Zeus?

a) Venus

b) Jupiter

c) Mars

d) Earth

Answer: (b)

Jupiter was named after the Roman God Zeus. Zeus is the “Father of Gods and men” who rules the Olympians of Mount Olympus as a father rules the family according to the ancient Greek religion.

He is the God of sky and thunder in Greek mythology. Zeus is etymologically cognate with and, under the Hellenic influence, became particularly closely identified with Roman Jupiter.

Question : 49

The term syzygy is referred to when

a) The Moon and the Sun are at right angles with reference to the Earth.

b) The Moon, Sun and Earth lie along a straight line.

c) The Earth is at aphelion and the Moon at apogee.

d) The Earth is at perihelion and the Moon at perigee.

Answer: (b)

The term SYZYGY is referred to when the moon, sun, and earth lie along a straight line. As seen from the Earth, a solar eclipse is a type of eclipse that occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks (“occults”) the Sun.

This can happen only at the new moon when the Sun and the Moon are in conjunction as seen from Earth in an alignment referred to as SYZYGY. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses only part of the Sun is obscured.

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962 Universe, solar system and Astronomy based indian geography mcq section 7 question answer with explanation pdf

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