Distribution and Uses of Water on Earth

Fresh Water

Only 2.5% of Earth's water is fresh.

Saline Water

96.5% of Earth's water is saltwater.

Potable Water

Unpolluted water suitable for drinking.

Groundwater

Water stored underground, comprising 30.1% of fresh water.

Glaciers and Ice Caps

68.7% of fresh water is locked in ice.

Surface Water

Water found on Earth's surface, including lakes.

Domestic Water Use

Water used for household activities like cooking.

Agricultural Water Use

Water primarily used for irrigation and livestock.

Industrial Water Use

22% of water is consumed by industrial processes.

Flood Irrigation

Water is supplied over fields or furrows.

Water Pollution

Contamination of water bodies from industrial activities.

Hydroelectric Power

Energy generated using water flow in dams.

Water Demand

Increased by population growth and economic development.

Surface Water Distribution

Includes lakes (20.9%) and rivers (0.49%).

Water Quality

Determined by pollutants and physical characteristics.

Water Footprint

Total volume of freshwater used by individuals.

Water Distribution

Water is spread across Earth in various forms.

In-Stream Use

Water use without diverting it from its source.

Irrigation

Water application to crops, crucial for agriculture.

Spray Irrigation

Uses pumps to spray water on crops.

Trickle Irrigation

Delivers water directly to plant roots via pipes.

Subsurface Irrigation

Supplies water through underground pipes.

Water Scarcity

Limited availability of fresh water for consumption.

WHO Estimate

25% of people lack access to safe drinking water.

Water Conservation

Efforts to save and manage water resources.

Water Cycle

Continuous movement of water through evaporation and precipitation.

Water Use Categories

Includes domestic, agricultural, industrial, and in-stream.

Environmental Impact

Effects of water use on ecosystems and habitats.