Covers 71% of the earth's surface

Saltwater

Smaller than oceans and close in land

Flowing bodies of freshwater

Static bodies of freshwater

Water located beneath earth's surface

Large masses of ice and snow

Areas where water saturates the soil

Examples of wetlands

Water vapor in the atmosphere

Artificial lakes

High salt content

Largest reservoir of the earth

Often less salty than ocean

Low in salinity

Can vary from small ponds to large bodies

Found in aquifers beneath the earth

Solid freshwater in ice forms

Contains 68.7% of earth's freshwater

Created by constructing dams across rivers

Heat from within the earth

Low emission, sustainable and is not affected by water conditions

Energy from flowing water

Flood control and water storage(advantage)