Less than 1 %.
Less than 1 %.
Less than 1 %.
Less than 1 %.
About 21 of the Earth's atmosphere is made up of oxygen.
Approximately 78% of the Earth's atmosphere is made up of nitrogen gas.
Most of Earth's freshwater is located in glaciers and ice caps, with a smaller amount stored in groundwater. Rivers, lakes, and streams make up a small percentage of Earth's total freshwater supply.
Saltwater is about 97.5% of world water. Freshwater is about 2.5% of world water, because most of the world is made up of oceans.
Groundwater makes up about 30.1% of the Earth's freshwater.
about 90%
About 21 of the Earth's atmosphere is made up of oxygen.
About 7% of the earths crust
5.4%
Approximately 78% of the Earth's atmosphere is made up of nitrogen gas.
by oceans and rivers and streams
by oceans and rivers and streams
Most of Earth's freshwater is located in glaciers and ice caps, with a smaller amount stored in groundwater. Rivers, lakes, and streams make up a small percentage of Earth's total freshwater supply.
Saltwater is about 97.5% of world water. Freshwater is about 2.5% of world water, because most of the world is made up of oceans.
All of them.
Approximately 21% of Earth's atmosphere is made up of oxygen.
Groundwater makes up about 30.1% of the Earth's freshwater.