Tag: planets and stars

Questions Related to planets and stars

Consider the following statements and select the correct answer using the code given below:
A.The age of the solar system is 4.6 billion years.
B.The outer planets consists of gases.

geography the sun, the moon and the earth solar system and sun planets and stars introduction to solar system

  1. Only A is correct

  2. Only B is correct

  3. Both 1and 2 are correct

  4. Neither 1 nor 2 is correct

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Correct Option: C
Explanation:

The age of the solar system is 4.6 billion years. It is evident from the study of meteorites. Meteorites are considered as the oldest accessible material around.

Outer planets are the planets which are furthest from the sun. Jupiter, Saturn, Uranus and Neptune are the outer planets. The asteroid belt separates outer planets from inner planets. They consists of light material.

How many planets are there in our solar system?

geography the sun, the moon and the earth solar system and sun planets and stars introduction to solar system

  1. 7

  2. 8

  3. 9

  4. 10

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Correct Option: B
Explanation:

Our solar system consists of a star -  the Sun and 8 planets namely Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. There is an asteroid belt between Mars and Jupiter which separates the planets in two regions. The planets towards the Sun i.e. Mercury, Venus, Earth, Mars are inner planets and the other four planets are outer 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.