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CSS - PMS - CCE - PCS - General Science Practice

Stars & Solar System MCQs

Stars & Solar System covers the structure, formation and major components of the universe with special focus on stars, the Sun, planets, moons, asteroids, comets and other objects of the Solar System. This topic explains stellar characteristics, life cycle of stars, planetary features, orbital motion and important astronomical facts frequently asked in CSS, PMS, CCE, PCS, PPSC and FPSC examinations.

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Stars & Solar System

Stars & Solar System MCQs With Answers

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CSS - PMS - CCE - PCS - General Science Stars & Solar System
Which planet is known as the Red Planet?
A. Venus
B. Mars
C. Jupiter
D. Mercury
Read Theory
Correct Answer: B
B: Correct because Mars appears reddish due to iron oxide on its surface. A: Wrong because Venus is not called the Red Planet. C: Wrong because Jupiter is a gas giant. D: Wrong because Mercury is the smallest planet.
CSS - PMS - CCE - PCS - General Science Stars & Solar System
Which planet is famous for its prominent rings?
A. Earth
B. Mars
C. Saturn
D. Venus
Read Theory
Correct Answer: C
A: Wrong because Earth does not have prominent rings. B: Wrong because Mars does not have a ring system like Saturn. C: Correct because Saturn is famous for its bright ring system. D: Wrong because Venus has no prominent rings.
CSS - PMS - CCE - PCS - General Science Stars & Solar System
Earth revolves around:
A. The Moon
B. The Sun
C. Mars
D. Jupiter
Read Theory
Correct Answer: B
A: Wrong because the Moon revolves around Earth. B: Correct because Earth orbits the Sun. C: Wrong because Earth does not revolve around Mars. D: Wrong because Earth does not revolve around Jupiter.
CSS - PMS - CCE - PCS - General Science Stars & Solar System
Which planet is known as the Red Planet?
A. Venus
B. Mars
C. Jupiter
D. Saturn
Read Theory
Correct Answer: B
Correct Answer: B. Mars Fact Check: Mars appears reddish-orange because its surface contains large amounts of iron oxide (rust). Just as iron rusts on Earth and turns reddish-brown, the iron-rich dust and rocks on Mars give the entire planet a red appearance when viewed from space. > Position from the Sun 4th planet > Nickname Red Planet Color Cause Iron oxide (rust) > Moons 2 (Phobos and Deimos) > Day Length 24 hours 37 minutes > Largest Volcano Olympus Mons (largest volcano in the Solar System) > Atmosphere Mostly carbon dioxide. A. Venus is not correct because it does not match the verified fact: Mars appears reddish-orange because its surface contains large amounts of iron oxide (rust). B. Correct — Mars is right because Mars appears reddish-orange because its surface contains large amounts of iron oxide (rust). C. Jupiter is not correct because it does not match the verified fact: Mars appears reddish-orange because its surface contains large amounts of iron oxide (rust). D. Saturn is not correct because it does not match the verified fact: Mars appears reddish-orange because its surface contains large amounts of iron oxide (rust).
CSS - PMS - CCE - PCS - General Science Stars & Solar System
Which planet is called Earth's twin?
A. Mars
B. Venus
C. Mercury
D. Saturn
Read Theory
Correct Answer: B
Venus is similar in size and composition to Earth.
CSS - PMS - CCE - PCS - General Science Stars & Solar System
The nearest planet to the Sun is:
A. Venus
B. Earth
C. Mercury
D. Mars
Read Theory
Correct Answer: C
Mercury is closest to the Sun.
CSS - PMS - CCE - PCS - General Science Stars & Solar System
Which is the smallest planet in the Solar System?
A. Mars
B. Mercury
C. Venus
D. Neptune
Read Theory
Correct Answer: B
Mercury is the smallest recognized planet.
CSS - PMS - CCE - PCS - General Science Stars & Solar System
Which planet has the most rings?
A. Mars
B. Earth
C. Saturn
D. Venus
Read Theory
Correct Answer: C
Saturn is famous for its ring system.
CSS - PMS - CCE - PCS - General Science Stars & Solar System
The Earth revolves around the Sun in:
A. 24 hours
B. 30 days
C. 365¼ days
D. 180 days
Read Theory
Correct Answer: C
One revolution takes about 365.25 days.
CSS - PMS - CCE - PCS - General Science Stars & Solar System
The nearest star to Earth is:
A. Sirius
B. Alpha Centauri
C. Sun
D. Polaris
Read Theory
Correct Answer: C
The Sun is Earth's nearest star.
CSS - PMS - CCE - PCS - General Science Stars & Solar System
The largest planet in the Solar System is:
A. Saturn
B. Earth
C. Jupiter
D. Neptune
Read Theory
Correct Answer: C
Jupiter is the largest planet.
CSS - PMS - CCE - PCS - General Science Stars & Solar System
Which planet is known as the Red Planet?
A. Venus
B. Mars
C. Jupiter
D. Mercury
Read Theory
Correct Answer: B
Mars appears red due to iron oxide on its surface.
CSS - PMS - CCE - PCS - General Science Stars & Solar System
Which is the brightest planet in the solar system?
A. Jupiter
B. Mercury
C. Uranus
D. Venus
Read Theory
Correct Answer: D
CSS - PMS - CCE - PCS - General Science Stars & Solar System
The planet nearest to the earth is
A. Mercury
B. Jupiter
C. Venus
D. None of These
Read Theory
Correct Answer: C
CSS - PMS - CCE - PCS - General Science Stars & Solar System
The planet which revolves very slowly around the sun is:
A. Neptune
B. Jupiter
C. Mars
D. None of These
Read Theory
Correct Answer: A
CSS - PMS - CCE - PCS - General Science Stars & Solar System
Which is the hottest planet in our solar system?
A. Venus
B. Neptune
C. Mars
D. None of These
Read Theory
Correct Answer: A
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