Which two organisms are  most  closely related, based on the tree above?

How do adaptation affect a species?

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

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