GK MCQ Quiz
1. What is the largest planet in our solar system?
Answer: Jupiter
Solution: Jupiter is the largest planet in our solar system, with a diameter of about 142,984 km.
Solution: Jupiter is the largest planet in our solar system, with a diameter of about 142,984 km.
2. Which planet is known as the 'Red Planet'?
Answer: Mars
Solution: Mars is known as the 'Red Planet' because of its reddish appearance, which is due to iron oxide on its surface.
Solution: Mars is known as the 'Red Planet' because of its reddish appearance, which is due to iron oxide on its surface.
3. Which planet has the most moons?
Answer: Jupiter
Solution: Jupiter has the most moons of any planet in our solar system, with at least 79 known moons.
Solution: Jupiter has the most moons of any planet in our solar system, with at least 79 known moons.
4. Which is the smallest planet in our solar system?
Answer: Mercury
Solution: Mercury is the smallest planet in our solar system with a diameter of about 4,880 km.
Solution: Mercury is the smallest planet in our solar system with a diameter of about 4,880 km.
5. Which planet is closest to the Sun?
Answer: Mercury
Solution: Mercury is the closest planet to the Sun, orbiting at an average distance of about 58 million kilometers.
Solution: Mercury is the closest planet to the Sun, orbiting at an average distance of about 58 million kilometers.
6. Which planet has the Great Red Spot?
Answer: Jupiter
Solution: The Great Red Spot is a massive storm on Jupiter that has been raging for at least 350 years.
Solution: The Great Red Spot is a massive storm on Jupiter that has been raging for at least 350 years.
7. Which planet is known for its extensive ring system?
Answer: Saturn
Solution: Saturn is known for its prominent ring system, which is made up of ice and rock particles.
Solution: Saturn is known for its prominent ring system, which is made up of ice and rock particles.
8. Which planet is often referred to as Earth's 'sister planet'?
Answer: Venus
Solution: Venus is often called Earth's 'sister planet' because of their similar size, mass, and proximity to the Sun.
Solution: Venus is often called Earth's 'sister planet' because of their similar size, mass, and proximity to the Sun.
9. Which planet has the highest mountain in the solar system?
Answer: Mars
Solution: Mars is home to Olympus Mons, the tallest volcano and mountain in the solar system, which is about 22 km high.
Solution: Mars is home to Olympus Mons, the tallest volcano and mountain in the solar system, which is about 22 km high.
10. Which planet has a day that is longer than its year?
Answer: Venus
Solution: Venus has a very slow rotation, taking 243 Earth days to rotate once, while its orbit around the Sun takes only 225 Earth days.
Solution: Venus has a very slow rotation, taking 243 Earth days to rotate once, while its orbit around the Sun takes only 225 Earth days.
11. Which planet is known as the 'Morning Star' or 'Evening Star'?
Answer: Venus
Solution: Venus is often visible just before sunrise or after sunset, earning it the nickname 'Morning Star' or 'Evening Star'.
Solution: Venus is often visible just before sunrise or after sunset, earning it the nickname 'Morning Star' or 'Evening Star'.
12. Which planet rotates on its side?
Answer: Uranus
Solution: Uranus rotates on its side, with an axial tilt of about 98 degrees, making its rotation unique in the solar system.
Solution: Uranus rotates on its side, with an axial tilt of about 98 degrees, making its rotation unique in the solar system.
13. Which planet has the fastest orbit around the Sun?
Answer: Mercury
Solution: Mercury has the fastest orbit around the Sun, completing one orbit in just 88 Earth days.
Solution: Mercury has the fastest orbit around the Sun, completing one orbit in just 88 Earth days.
14. Which is the densest planet in the solar system?
Answer: Earth
Solution: Earth is the densest planet in the solar system, with a density of about 5.52 grams per cubic centimeter.
Solution: Earth is the densest planet in the solar system, with a density of about 5.52 grams per cubic centimeter.
15. Which planet is furthest from the Sun?
Answer: Neptune
Solution: Neptune is the eighth and furthest planet from the Sun, with an average distance of about 4.5 billion kilometers.
Solution: Neptune is the eighth and furthest planet from the Sun, with an average distance of about 4.5 billion kilometers.
16. What is the name of the second largest moon in the solar system?
Answer: Titan
Solution: Titan, Saturn's largest moon, is the second largest moon in the solar system, after Jupiter's moon Ganymede.
Solution: Titan, Saturn's largest moon, is the second largest moon in the solar system, after Jupiter's moon Ganymede.
17. Which planet has the coldest surface temperature?
Answer: Uranus
Solution: Uranus has the coldest surface temperature of any planet in the solar system, with temperatures dipping as low as -224°C.
Solution: Uranus has the coldest surface temperature of any planet in the solar system, with temperatures dipping as low as -224°C.
18. Which planet is known for having the most extreme seasons?
Answer: Uranus
Solution: Uranus experiences the most extreme seasons due to its tilted axis, causing extreme variation in sunlight during its 84-year orbit.
Solution: Uranus experiences the most extreme seasons due to its tilted axis, causing extreme variation in sunlight during its 84-year orbit.
19. Which dwarf planet is located in the asteroid belt?
Answer: Ceres
Solution: Ceres is the largest object in the asteroid belt between Mars and Jupiter, and it is classified as a dwarf planet.
Solution: Ceres is the largest object in the asteroid belt between Mars and Jupiter, and it is classified as a dwarf planet.
20. Which planet has the shortest day in the solar system?
Answer: Jupiter
Solution: Jupiter has the shortest day in the solar system, with a rotation period of just about 10 hours.
Solution: Jupiter has the shortest day in the solar system, with a rotation period of just about 10 hours.
21. Which planet has the highest wind speeds in the solar system?
Answer: Neptune
Solution: Neptune has the highest wind speeds in the solar system, with winds reaching up to 2,100 kilometers per hour.
Solution: Neptune has the highest wind speeds in the solar system, with winds reaching up to 2,100 kilometers per hour.
22. Which moon is believed to have a subsurface ocean beneath its icy crust?
Answer: Europa
Solution: Europa, one of Jupiter's moons, is believed to have a vast subsurface ocean beneath its icy crust, making it a candidate for extraterrestrial life.
Solution: Europa, one of Jupiter's moons, is believed to have a vast subsurface ocean beneath its icy crust, making it a candidate for extraterrestrial life.
23. Which planet is the hottest in our solar system?
Answer: Venus
Solution: Despite being further from the Sun, Venus is the hottest planet in our solar system due to its thick atmosphere trapping heat.
Solution: Despite being further from the Sun, Venus is the hottest planet in our solar system due to its thick atmosphere trapping heat.
24. Which planet's axis of rotation is nearly parallel to its orbit around the Sun?
Answer: Uranus
Solution: Uranus' axis of rotation is tilted by about 98 degrees, making it nearly parallel to its orbit around the Sun.
Solution: Uranus' axis of rotation is tilted by about 98 degrees, making it nearly parallel to its orbit around the Sun.
25. Which celestial body was reclassified as a dwarf planet in 2006?
Answer: Pluto
Solution: Pluto was reclassified as a dwarf planet in 2006 by the International Astronomical Union (IAU) due to its size and orbit.
Solution: Pluto was reclassified as a dwarf planet in 2006 by the International Astronomical Union (IAU) due to its size and orbit.
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