Correct Option
The correct option is Only two pairs
Explanation
The Solar System comprises the Sun, eight planets, satellites, and various other celestial bodies. Each category of celestial body possesses distinct physical characteristics and orbital mechanics defined by astronomical principles.Statement-wise Analysis:
- Pair 1 is Correct: The Earth is not a perfect sphere; it is slightly flattened at the poles and bulges at the equator. This specific shape is described as a Geoid, which literally translates to an "Earth-like shape."
- Pair 2 is Incorrect: Planets revolve around the Sun in fixed paths known as orbits. These paths are elongated or elliptical in shape, rather than perfectly circular.
- Pair 3 is Correct: A satellite is defined as a celestial body that orbits a planet, similar to how planets orbit the Sun. The Moon is a natural satellite of the Earth.
- Pair 4 is Incorrect: Asteroids are numerous tiny celestial bodies that orbit the Sun. The primary asteroid belt is located between the orbits of Mars and Jupiter, not between Earth and Mars.
Key Takeaway: Planetary orbits are elliptical (elongated), and the main concentration of asteroids is found in the belt separating the inner planets (Mars) from the outer gas giants (Jupiter).