Question

Which of these statements describes Earth's atmosphere?

It includes all living and once-living things.
It is a mixture of nickel and iron, below the mantle.
It is all the salt and fresh liquid water on Earth's surface.
It is the mixture of gases that surrounds Earth’s Atmosphere 

Answer 1

Hello!

The statement which best describes Earth's atmosphere :

It includes all living and once-living things.

These include everything from humans to trees.