Tag: space exploration

Questions Related to space exploration

Which among the following is known as red planet?

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. Mercury

  4. Venus

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Correct Option: A
Explanation:

Mars is known as red planet.

Ans: Mars

The most massive planet in the solar system is _______ .

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

  1. Saturn

  2. Earth

  3. Venus

  4. Jupiter

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Correct Option: D
Explanation:

The Jupiter is the most massive planet in the solar system. It is 300 times bigger than the earth.

The only natural satellite in the solar system which has its own atmosphere is:

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

  1. Europa

  2. Moon

  3. Titan

  4. Callisto

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Correct Option: C
Explanation:

Saturn moon also known as Titan is largest moon of Saturn and is only known to have a dense atmosphere and also the only object other than Earth and also the only object other than Earth were clear evidence of stable bodies of surface liquid have been found.

Arrange the following according to the specific gravity of them in ascending order.
a)Saturn
b)Venus
c)Jupiter
d)Mars

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

  1. c,a,b,d

  2. a,c,d,b

  3. a,b,c,d

  4. d,c,b,a

Show answer
Correct Option: B
Explanation:

Specific gravity is measure to the density of the planet.

${ \rho  } _{ Saturn }<{ \rho  } _{ Jupiter }<{ \rho  } _{ Mars }<{ \rho  } _{ Venus }$
So answer is a,c,b,d

The second biggest planet of the solar system has:

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

  1. lowest density

  2. density equal to water

  3. highest density

  4. density equal to earth

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Correct Option: A
Explanation:

Second biggest planet in the solar system is Saturn.

Saturn has the lowest density.

Identify me:
I am having frozen carbon dioxide near the poles which look like caps.
I have two natural satellites.
I take 687 days to move once around the Sun.
I am rich in iron oxide.

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. Mars

  3. Uranus

  4. Pluto

Show answer
Correct Option: B
Explanation:

These all are the properties of Mars.

$\longrightarrow $ Iron oxide Rich
$\longrightarrow $Revolution time $67$ days
$\longrightarrow $ two moon
$\longrightarrow $ frozen carbon dioxide
Answer is Mars.

Polar ice caps of the planet mars are due to 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. solidified carbon dioxide

  2. volcanoes erupted near the poles

  3. cover of dust particles that reflects light

  4. solidified water

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Correct Option: A
Explanation:

During the winter freezing time the polar region are covered by caps which is of water, and carbon dioxide. They appear white.

Heat waves are trapped to the maximum extent on which planet?

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. Venus

  4. Neptune

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Correct Option: C
Explanation:

Venus due to the presence of Carbon dioxide in large amount.

The poles of this planet face the sun for longer periods of time than any other planet. 

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. Uranus

  3. Jupiter

  4. Saturn

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Correct Option: B
Explanation:

The pole of Uranus faces the Sun for longer period of time than any other planet as it axis is $98°$ and lies sideways therefore poles facing the Sun most of the time.

A ring system around planet Uranus was discovered by:

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

  1. Phobos and Deimos

  2. Prof.J.C.Bhattacharya and K.Kuppuswamy

  3. William Herschel

  4. Galileo

Show answer
Correct Option: C
Explanation:

Ring system around planet Uranus is discovered by William Herschel detailing his observation of Uranus in ${ 18 }^{ th }$ century

Definitive discovery was made by  James L. Elliot, Edward W. Dunham and Jessica Mink.