Term used to refer to activity that can be continued or repeated for the foreseeable future.
a. storage
b. sustainability
c. harvest
d. biomass production

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of

Describe characteristics of a good respitory surface

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?