SOLER SYSTEM (ADRE)

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SOLER SYSTEM MCQ

Multiple-choice questions (MCQs) about the Solar System,with their answers and explanations


 1. What planet is referred to as the Red Planet?

A. Earth  

B. Mars  

C. Jupiter  

D. Venus  


**Answer: B. Mars**  

**Explanation:** Mars is known as the Red Planet because of its reddish appearance, which is due to iron oxide (rust) on its surface.


### 2. What is the largest planet in our solar system?

A. Earth  

B. Mars  

C. Jupiter  

D. Saturn  


**Answer: C. Jupiter**  

**Explanation:** Jupiter is the largest planet in our solar system, with a diameter of about 143,000 kilometers.


 4. What is the smallest planet in our solar system?

A. Mercury  

B. Mars  

C. Venus  

D. Earth  


**Answer: A. Mercury**  

**Explanation:** Mercury is the smallest planet in our solar system, with a diameter of about 4,880 kilometers.


### 5. Which planet is closest to the Sun?

A. Earth  

B. Mars  

C. Mercury  

D. Venus  


**Answer: C. Mercury**  

**Explanation:** Mercury is the closest planet to the Sun, with an average distance of about 57.9 million kilometers.


### 6. What is the primary component of the Sun?

A. Oxygen  

B. Carbon  

C. Hydrogen  

D. Nitrogen  


**Answer: C. Hydrogen**  

**Explanation:** The Sun is primarily composed of hydrogen, which undergoes nuclear fusion to produce helium and release energy.


### 7. Which planet is known for its Great Red Spot?

A. Earth  

B. Mars  

C. Jupiter  

D. Saturn  


**Answer: C. Jupiter**  

**Explanation:** The Great Red Spot is a massive storm on Jupiter that has been raging for at least 400 years.


### 8. Which dwarf planet is located in the asteroid belt?

A. Eris  

B. Haumea  

C. Ceres  

D. Makemake  


**Answer: C. Ceres**  

**Explanation:** Ceres is the only dwarf planet located in the asteroid belt between Mars and Jupiter.


### 9. What is the name of the second-largest moon in our solar system?

A. Ganymede  

B. Titan  

C. Callisto  

D. Io  


**Answer: B. Titan**  

**Explanation:** Titan, which orbits Saturn, is the second-largest moon in our solar system, after Jupiter's moon Ganymede.


### 10. Which planet has the shortest day, completing one rotation in about 10 hours?

A. Earth  

B. Mars  

C. Jupiter  

D. Saturn  


**Answer: C. Jupiter**  

**Explanation:** Jupiter has the shortest day of any planet, rotating once approximately every 10 hours.


### 14. Which planet has the longest day, with one rotation taking about 243 Earth days?

A. Earth  

B. Mars  

C. Venus  

D. Neptune  


**Answer: C. Venus**  

**Explanation:** Venus has the longest day of any planet in the solar system, taking 243 Earth days to complete one rotation..


### 16. What is the main reason for the strong winds on Neptune?

A. Proximity to the Sun  

B. Rapid rotation and internal heat  

C. Magnetic field  

D. High atmospheric pressure  


**Answer: B. Rapid rotation and internal heat**  

**Explanation:** Neptune's strong winds are driven by its rapid rotation and the heat generated from its interior.



19. Which planet has the most moons?

A. Earth  

B. Mars  

C. Jupiter  

D. Saturn  


**Answer: D. Saturn**  

**Explanation:** Saturn has the most moons of any planet in the solar system, with over 80 confirmed moons.

20. Which planet's axis is tilted by about 98 degrees, causing it to rotate on its side?

A. Mars  

B. Venus  

C. Uranus  

D. Neptune  


**Answer: C. Uranus**  

**Explanation:** Uranus has an extreme axial tilt of about 98 degrees, making it rotate on its side relative to its orbit around the Sun.

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