<span>A scientist measured an increase in nitrous oxide in the atmosphere. This increase would result in the greenhouse effect. </span>
In animals, a gene is inserted into an embryo, modifying the genome to manufacture the product of this new gene. In plants, a gene is injected into a single cell that is grown from a seed into a plant. This plant expresses the new gene in all its cells. The difference between GM and selective breeding.
I would say D! Purely because it is looking at the effects of humans (therefore related to topics more geographical).
Hope that helps. :)
Primary succession occurs in areas without life, while secondary succession occurs in places that were previously inhabitated.
Hope this helps!
:D®
The answer is C. The Experiment!!!!!