Tag: planets

Questions Related to planets

Which of the following is NOT a planet of the sun ? 

evs - i our earth and our solar system solar system and sun planets and stars planets sunita's experience in space space exploration

  1. Sirius

  2. Mercury

  3. Saturn

  4. Earth

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Correct Option: A
Explanation:

Sirius is a star,it is not a planet of the sun.The star Sirius is the brightest star in the sky. It is commonly known as the Dog Star. 

There are nine planets in the solar system. 

evs - i our earth and our solar system solar system and sun planets and stars planets sunita's experience in space space exploration

  1. True

  2. False

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Correct Option: B
Explanation:


There are eight planets in the solar system. Pluto is dwarf planet not a planet.

The space crafts cannot land on Venus because it is the ___________.

evs - i our earth and our solar system solar system and sun planets and stars planets sunita's experience in space space exploration

  1. smallest planet

  2. coldest planet

  3. hottest planet

  4. densest planet

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Correct Option: C

Phobos and Deimos are the natural satellites of which planet in the solar system?

evs - i our earth and our solar system solar system and sun planets and stars planets sunita's experience in space space exploration

  1. Mars

  2. Earth

  3. Neptune

  4. Saturn

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Correct Option: A
Explanation:

Mars has only two natural satellites. Phobos and Deimos both were discovered by Asaph Hall in August $1877$.

Two third part of which planet is covered with water?

evs - i our earth and our solar system solar system and sun planets and stars planets sunita's experience in space space exploration

  1. Jupiter

  2. Earth

  3. Saturn

  4. Venus

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Correct Option: B
Explanation:

Only earth has large reserves of water

The surface temperature of Mercury varies from :

evs - i our earth and our solar system solar system and sun planets and stars planets sunita's experience in space space exploration

  1. $30 ^\circ C$ to $-18 ^\circ C$

  2. $100 ^\circ C$ to $-183 ^\circ C$

  3. $427 ^\circ C$ to $-183 ^\circ C$

  4. $80 ^\circ C$ to $ 0 ^\circ C$

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Correct Option: C
Explanation:

The surface temperature of mercury varies from around $800F$ to $-290F$ or $427°C$ to $-180°C$.

Which is the second biggest planet in the solar system?

evs - i our earth and our solar system solar system and sun planets and stars planets sunita's experience in space space exploration

  1. Jupiter

  2. Saturn

  3. Earth

  4. Neptune

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Correct Option: B
Explanation:

The biggest is Jupiter. Then comes Saturn.

Which planet in the solar system has a natural satellite having its own atmosphere?

evs - i our earth and our solar system solar system and sun planets and stars planets sunita's experience in space space exploration

  1. Mercury

  2. Saturn

  3. Earth

  4. Uranus

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Correct Option: B
Explanation:

Titan have its own atmosphere which is the largest moon of Saturn.

Out of the following, which planet will take the most time to make 1 revolution around the Sun?

evs - i our earth and our solar system solar system and sun planets and stars planets sunita's experience in space space exploration

  1. Mercury

  2. Earth

  3. Jupiter

  4. Saturn

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Correct Option: D
Explanation:

The time period of revolution depends on the radius of the orbit. Greater the radius, greater is the period. Since Saturn is the farthest planet from the sun, its radius is the greatest and so is the time period.

Mars appears red due to the presence of ________ .

evs - i our earth and our solar system solar system and sun planets and stars planets sunita's experience in space space exploration

  1. Carbon oxide

  2. Nitrogen oxide

  3. Iron oxide

  4. Methane

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Correct Option: C
Explanation:

Reddish color of the Mars is due to the presence of "ferric" iron in the from of Red hematite $({ Fe } _{ 2 }{ O } _{ 3 })$ which is the oxide of iron.