The correct option is (c).
Explanation
The Earth is a terrestrial planet located in the inner solar system. Its classification is defined by its orbital position relative to the Sun and its physical dimensions compared to other planetary bodies.
- Statement 1 is Incorrect: The arrangement of planets in order of their distance from the Sun is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Therefore, the Earth is the third nearest planet to the Sun. Venus is the second nearest planet.
- Statement 2 is Correct: In terms of size (diameter and mass), the Earth ranks after the gas giants and ice giants. The descending order of size is Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars, and Mercury. Thus, the Earth is the fifth largest planet in the solar system and the largest among the inner planets.
- Statement 3 is Correct: The Earth is not a perfect sphere. Due to the centrifugal force generated by its rotation, the Earth bulges at the equator and is slightly flattened at the poles. This specific shape is scientifically termed a Geoid, which means "Earth-like shape."
Key Takeaway: Earth is the third planet from the Sun and the fifth largest in the solar system. Its physical shape is a Geoid, characterized by an equatorial bulge and polar flattening.