Why are most autotrophs referred to as the producers of the biosphere?

Twind is considered to be an abiotic factor because it.?

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c.ozone layer hole d.increase in sea levels

Identify the examples in which sam interacts only with natural resources