Question

oceans make up the earth’s layer called the ______.
hydrosphere
biosphere
lithosphere
atmosphere

Explanation:

The hydrosphere includes all water on Earth's surface such as oceans, seas, lakes, and rivers. The biosphere is the global sum of all ecosystems. The lithosphere is the rigid outer part of the Earth. The atmosphere is the layer of gases surrounding the Earth. Oceans are part of the hydrosphere.

Answer:

hydrosphere