Seven
red, orange, yellow, green, blue, indigo, and violet
one way we impacted are land is from the weight we are stressing on the earth. one way we are are water is by littering into the water with harsh chemicals and trash. the best way to fix these problems are by slowing down population and finding better ways to dispose of trash by not littering.
I think it could be mountains.. if I'm wrong then I'm sorry..
Because parallel measures one degree north or south of the equator, with 90 degree north of the equator and 90 degree south of the equator.
