What has the size of the human population done to the number of available habitats over the past 100 years?

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

Drag the tiles to the correct boxes to complete the pairs. match each cell organelle with its description.

When a population split into two subgroups what is most likely to cause the subgroups to develop different traits?