Q: What is a thin layer of gas that surrounds earth called?


Read this paragraph and choose the correct option from the provided answers:

The atmosphere is a thin layer of gas that surrounds Earth. Climatologists study the atmosphere. These scientists work to understand the climate as it is now. They also study how climate will change in response to global warming.

 Choices:

- the cloud cover

- the dioxide

- the wind cycle

- the atmosphere


A:
the atmosphere