Question

What is the earth?
What is the atomosphere

Answer 1

Earth is the third planet from the Sun and the only astronomical object known to harbor life. About 29.2% of Earth's surface is land consisting of continents and islands.Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity. It contains roughly 78% nitrogen and 21% oxygen 0.97% argon and carbon dioxide 0.04% trace amounts of other gases, and water vapor. This mixture of gases is commonly known as air.

Explanation:I cited this as my claim because it shows and explains the question that is giving.

Answer 2

Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity.

Step-by-step explanation:

It contains roughly 78% nitrogen and 21% oxygen 0.97% argon and carbon dioxide 0.04% trace amounts of other gases, and water vapor. This mixture of gases is commonly known as air.