A ____ is the total amount of water on a planet. An ____ is made of the layers of gases surrounding a planet or other celestial body. The ____ is made up of the parts of Earth where life exists—all ecosystems. the ____ is the earth itself: the rocks, minerals, and landforms of the surface and interior.

by

Leaderboard

Visual style

Mga Option

I-switch ang template

I-restore ang gi-autosave: ?