A collective layer of gas that envelopes the Earth?
Atmosphere
Refers to the bodies of water consisting of freely flowing bodies of water found on the surface of the Earth, as well this sphere covers nearly 71% of the Earth’s surface?
Hydrosphere
Nearly 97.4% of the water in the hydrosphere is composed of saline or salt water found in vast oceans covering the Earth. The remaining 2.6% comprises fresh water stored in glaciers, ice caps, and underground reservoirs.
Largest out of all the spheres, extending from the surface of the Earth down to its center?
Geosphere
Refers to the narrow band on the Earth’s surface where all biological life resides.