Q.1) Which of the following are the main gases present in the sun?
a) Hydrogen and Helium
b) Nitrogen and Helium
c) Hydrogen and Nitrogen
d) Helium and Carbon
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Explanation: Hydrogen and Helium are the main gases present in the sun.
Q.2) Arrange the planet according to their distance from the Sun from nearest to farthest?
a) Mercury, Venus, Earth, Mars
b) Venus, Mercury, Earth, Mars
c) Mars, Venus, Mercury, Earth
d) Earth, Mars, Venus, Mercury
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Explanation:
Planet according to their distance from the Sun from nearest to farthest are:
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.
Q.3) Which of the following planet is the biggest planet?
a) Mars
b) Uranus
c) Jupiter
d) Neptune
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Explanation: Jupiter is the biggest planet in our solar system in terms of size.
Q.4) Which is the smallest planet in our solar system in terms of size?
a) Venus
b) Earth
c) Mars
d) Mercury
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Explanation: In terms of size Mercury is the smallest planet in our solar system.
Q.5) Arrange the planet in descending order in terms of size?
a) Uranus, Neptune, Saturn, Earth
b) Saturn, Uranus, Neptune, Earth
c) Saturn, Earth, Uranus, Neptune
d) Earth, Uranus, Neptune, Saturn
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Explanation:
Planets in descending order in terms of size are (from biggest to smallest):
Jupiter > Saturn > Uranus > Neptune > Earth > Venus > Mars > Mercury
Q.6) Which of the following are not the Jovian planets?
a) Jupiter
b) Saturn
c) Earth
d) Uranus
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Explanation: Jupiter, Saturn, Uranus, and Neptune collectively known as the Jovian planets. Jovian planets mean that all of these planets were similar to Jupiter.
Q.7) Which of the following statement is not correct for the inner planet?
a) They are made up of dense metallic minerals.
b) They move faster and have a shorter period of revolution.
c) They have a thin and rocky crust.
d) Examples of inner planets are Jupiter, Saturn, and Uranus.
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Explanation: Examples of inner planets are Mercury, Venus, Earth, and Mars. Jupiter, Saturn, and Uranus are outer planets.
Q.8) Which of the following planet is known as the “evening star”?
a) Venus
b) Mercury
c) Earth
d) Mars
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Explanation: Venus is known as the “evening star”.
Q.9) Which of the following planet is known as the “Twin of the earth”?
a) Venus
b) Mars
c) Mercury
d) Saturn
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Explanation: Venus is like Earth in size and mass hence known as the “Twin of Earth”.
Q.10) Which planet is known as the “watery planet”?
a) Earth
b) Venus
c) Mars
d) Jupiter
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Explanation: Earth is known as the “watery planet” or “Blue planet” due to the presence of a huge amount of water on it.