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Earth systems
| Question | Answer |
|---|---|
| how much salt water is on earth | 97 percent |
| how much fresh water is on earth | 3 percent |
| how much potable water is there to drink | 1 percent |
| how do humans have a negitive impact on earth | every day life |
| the solid portion of earth including the crust and upper mantle of earth | geosphere |
| the part of earth crust water and atmosphere that supports life | biosphere |
| all the waters on earth surface such as lakes seas sometimes including water over earth surface such as clouds | hydrospher |
| what is the layers of gas that surrounds earth | atmosphere |