What two types of consumers are missing from this pyramid? Please help I need to turn it in today

What are the seven economic and social goals?

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

Why is it important to study each branch of earth science?