Q: What are clouds on earth made of?


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

Clouds on Earth are made of water vapor. Venus's clouds are a lot less pleasant. They are made of carbon dioxide, sulfur dioxide, and large amounts of corrosive sulfuric acid! Scientists think the color of sunlight on Venus is reddish-brown.

 Choices:

- rain

- ozone

- carbon dioxide gas

- water vapor


A:
water vapor