Which force holds the atmosphere around the earth? air gravity

The force that holds the atmosphere around the Earth is **gravity**. ### Explanation: - **Gravity** is the natural force that attracts objects with mass toward each other. In the case of Earth, gravity pulls the atmospheric gases toward the planet's center, preventing them from drifting off into space. This gravitational pull maintains the atmosphere's structure and density, allowing life to thrive. - **Air**, on the other hand, refers to the mixture of gases (primarily nitrogen, oxygen, and trace amounts of other gases) that make up the Earth's atmosphere. While air constitutes the atmosphere, it is gravity that keeps the air molecules bound to Earth. **Correct Answer:** **Gravity**