B, cold with a high salt content, I believe.
Since density is mass divided by volume, adding salt would increase mass.
Temperature is related to kinetic energy and the distance between molecules/atoms of a substance. The hotter the substance, the more distance there is between particles.
Generally cold water is more dense. Hope i helped :D
The answer would be car tired break up the ground, causing increased erosion. Rubber in a tire form can not get plants sick(unless it is carrying a disease), plants are used to dappled sunlight so that wouldn’t be a problem, increased fuel usage may be true however it is no concern to the park rangers
Answer:its called photosynthesis
Explanation:
A control group is kept the same to determine whether or not what you did for an experiment on the experimental group was actually caused by the experiment performed, and not other environmental changes. By keeping the same climate, environments, nourishment, etc. on a control group and experimental group, but only performing the experiment on the experimental group, you can prove your experiment actually works.
Calcitonin, secreted from the thyroid, and parathyroid hormone. Calcitonin lowers the blood calcium levels, PTH increases it.
