universe & solar system section 9 MCQ Questions & Answers Detailed Explanation
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The following question based on Universe, solar system and Astronomy topic of indian geography mcq
(a) angular distance east or west of International Date Line
(b) angular distance with respect to the pole star
(c) angular distance north or south of the equator
(d) angular distance east or west of the prime meridian
The correct answers to the above question in:
Answer: (d)
Discuss Form
Read more universe solar system astronomy Based Indian Geography Questions and Answers
Question : 1
Which planet orbits closest to the earth?
a) Venus
b) Mercury
c) Jupiter
d) Mars
Answer »Answer: (a)
Venus orbits the Sun at an average distance of about 0.72 AU (108,000,000 km) and completes an orbit every 224.65 days.
Although all planetary orbits are elliptical, Venus's orbit is the closest to circular, with an eccentricity of less than 0.01.
Question : 2
On which of the following planets water cycle is available?
a) Mars
b) Venus
c) Earth
d) Jupiter
Answer »Answer: (c)
The water cycle, also known as the hydrological cycle or H2O cycle, describes the continuous movement of water on, above, and below the surface of the Earth. Although the balance of water on Earth remains fairly constant over time, individual water molecules can come and go, in and out of the atmosphere.
The water moves from one reservoir to another, such as from river to ocean, or from the ocean to the atmosphere, by the physical processes of evaporation, condensation, precipitation, infiltration, runoff, and subsurface flow. In so doing, the water goes through different phases: liquid, solid (ice), and gas (vapor).
Question : 3
In a solar or lunar eclipse, the region of the earth’s shadow is divided into
a) Two parts
b) Three parts
c) Four parts
d) Five parts
Answer »Answer: (b)
An eclipse occurs when a star (such as Sun) aligns with two celestial bodies, such as a planet and a moon. The closer body casts a shadow that intersects the more distant body. This means that “things get dark.”
The region of the shadow is divided into an umbra, where the light from the star is completely blocked, and a penumbra, where only a portion of the light is blocked.
Beyond the end of the umbra is a region called the antumbra. For an observer inside the antumbra of a solar eclipse, for example, the moon appears smaller than the sun, resulting in an annular eclipse.
Question : 4
Which of the following is an alternative theory to the Big Bang theory developed in 1948, stating that the universe does not change even though it is expanding over time?
a) Mirror Universe
b) Eternal Inflation
c) Steady State Universe
d) Oscillating Universe
Answer »Answer: (c)
The Steady State theory (also known as the Infinite Universe theory or continuous creation) was developed in 1948 by Fred Hoyle, Thomas Gold, Hermann Bondi, and others as an alternative to the Big Bang theory.
In the steady-state theory, the density of matter in the expanding universe remains unchanged due to a continuous creation of matter. It asserts that the observable universe is basically the same at any time as well as at any place.
Question : 5
Consider the following two statements, one labeled as the Assertion (A) and the other as Reason (R). Examine these two statements carefully and select the correct answer using the codes given below:
Assertion (A):
The same face of the Moon is always presented to the Earth.
Reason (R):
The Moon rotates about its own axis in days which is about the same time that it takes to orbit the earth.
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 »Answer: (d)
The same side of the Moon is always faces the Earth because the Moon spins once on its axis in exactly the same amount of time that the Moon revolves around the Earth.
Question : 6
The planet which is called twin sister of Earth is
a) Mars
b) Pluto
c) Venus
d) Mercury
Answer »Answer: (c)
GET Universe, solar system and Astronomy PRACTICE TEST EXERCISES
universe & solar system section 1
universe & solar system section 2
universe & solar system section 3
universe & solar system section 4
universe & solar system section 5
universe & solar system section 6
universe & solar system section 7
universe & solar system section 8
universe & solar system section 9
universe & solar system section 10
universe & solar system section 11
universe & solar system section 12
universe & solar system section 13
Universe, solar system and Astronomy Shortcuts and Techniques with Examples
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