Question

Enlist natural resources

Answer 1

1 Water. While the earth may be mostly water, only about 2-1/2 percent of it is fresh water. 
2 Air. Clean air is necessary for the existence of life on this planet. 
3 Coal. Coal is estimated to be able to last less than 200 more years. 
4 Oil.
5 Natural gas.
6 Phosphorus.
7 Other Minerals.
8 Iron.