Which of the following statements is incorrect about the Earth?

Options

A. The Earth revolves around the Sun in a circular orbit.
B. Rotation of Earth causes day and night.
C. The revolution of the Earth causes seasonal changes on the Earth.
D. Moon is the only natural satellite of Earth.

Explanation

To determine which statement is incorrect about the Earth, let's analyze each statement provided:

1. **The Earth revolves around the sun in a circular orbit.**
- This statement is incorrect. The Earth's orbit around the Sun is not a perfect circle; it is an elliptical orbit.

2. **Rotation of Earth causes day and night.**
- This statement is correct. The Earth rotates on its axis, and this rotation is what causes the cycle of day and night.

3. **The revolution of the Earth causes seasonal changes on the Earth.**
- This statement is also correct. The tilt of the Earth's axis and its revolution around the Sun lead to the changing seasons.

4. **The Moon is the only natural satellite of the Earth.**
- This statement is correct. The Moon is indeed the only natural satellite that orbits the Earth.

Based on this analysis, the incorrect statement is: **"The Earth revolves around the sun in a circular orbit."**

### Steps Summary:
1. Identify each statement about the Earth.
2. Analyze the accuracy of each statement.
3. Determine which statement is incorrect based on scientific facts.