The Earth's Atmosphere surrounds our planet and is mostly composed of air. The atmosphere is essential to living things it provides carbon dioxide for plants and oxygen for animals. The two main gases that make up the atmosphere are nitrogen (approximately 78%), and oxygen (approximately 21%). Argon and traces of other gases, such as carbon dioxide, make up the rest. The total water content in the atmosphere is about 0.25%, mostly made up of water vapor.
The diameter of the solid Earth Is about 12,750 km.
Earth's Atmosphere More than 98% of the gases in the Earth's atmosphere are in three layers to 100 km above the surface.
Guide questions
1. What is the atmosphere?
2. What is in the atmosphere?
Answer (1)
1. What is the atmosphere?The atmosphere is the layer of gases that surrounds the Earth. It is essential for living things because it provides carbon dioxide for plants and oxygen for animals.2. What is in the atmosphere?The atmosphere is mostly composed of air, which consists mainly of nitrogen (78%) and oxygen (21%). It also contains argon, traces of other gases like carbon dioxide, and about 0.25% water vapor.
