Answer:
A
Explanation:
D is not correct because the atmosphere doesn't expand, C isn't correct because the Sun doesn't heat all the Earth evenly (hence different climates), B is not correct because cold fronts can be singular, so it has to be A
<span>After a week in the mountains, Jill should show an increase in red blood cell production along with a higher base metabolism.</span>
A. increased demand for natural resources; need to create environmental laws to protect natural resources for human consumption; need to develop air quality control systems for big business; need to ensure proper disposal of human waste
D) Vaccines work to fight the disease
Mark with crown!
The most common elements present in organic compounds are carbon, hydrogen, oxygen, and nitrogen.
