It is the land part of the earth.

Which landform best describes an opening in the surface of the earth from which lava flows?

Which landforms have the tallest elevations (heights) on the earth?

What do we call the landforms that are flat?

Which among the following pictures is a volcano?

Valleys erupt and give off molten rocks and lava.

It is the largest body of water.

It is a body of water surrounded by land.

What is a large, flowing body of freshwater that usually empties into a sea or ocean?

Which among the following pictures is an ocean?

Which among the following pictures is a river?

Lake is a body of freshwater and sea is a body of saltwater.

It is the water part of the earth.

There are three basic things that make up the environment: land, water, and air.