Question

1. which of these statements describes earths atmosphere? it includes all living and once - living things. it is the mixture of gases that surrounds earth. it is a mixture of nickel and iron, below the mantle. it is all the salt and fresh liquid water on earths surface.

Explanation:

The Earth's atmosphere is a layer of gases surrounding the planet. The first option describes the biosphere, the third describes the Earth's core composition, and the fourth describes the hydrosphere.

Answer:

It is the mixture of gases that surrounds Earth.