Cheatin

ore - natural resource that is mined for a profit

Forest grown for paper take - 10 - 20 years

Concrete and mortar used in construction are made up of aggregates

This was not always a a part of the atmosphere - oxygen

Required by life on earth and has unique properties that allow that life to exist - water

Cormite ore is found in - Layered intrusions

Oxygen is returned to the atmosphere by - Photosynthetic plants

Once used “renewable resource” - Replaced faster, or as fast, as used

Which is a renewable resource? - Carbon

The U.S uses what percent of the worlds oil? - 30%

Which is not non-renewable resource - Copper

How many nations experience chronic water shortages? - 25

Solid unweathered rock - bedrock

freshwater runoff can be controlled with - dams

What percent of the atmosphere does oxygen make up - 21

Which is natural air pollution - Forest fire produced smoke

How much of the earth is covered in water ? - 71

Oceans regulate which of planet earth? - temperature

Water can store large amount of (heat) without a lot of temperature change

Living things use (water) at a solvent to carry nutrence to cells

Ponds freeze from the - top down

frost wedging is an example of - water freezing and expanding

Phosphorous is a renewable resource - true

Animals are about what percent water?

What concentrates water-soluble human waste products - false