The correct answer is:
C. atmosphere
Explanation:
1. The layer of gases that surrounds Earth is known as the atmosphere.
2. The atmosphere is composed of different gases such as nitrogen, oxygen, carbon dioxide, and others.
3. It plays a crucial role in protecting life on Earth by absorbing harmful solar radiation and regulating the temperature.
4. The atmosphere is divided into several layers based on temperature and composition, such as the troposphere, stratosphere, mesosphere, thermosphere, and exosphere.
5. Each layer of the atmosphere serves specific functions and interacts with the Earth's surface and space in different ways.
