Answer:
i pretty sure its c but i could be wrong
Explanation:
Hydrogen,oxygen,nitrogen and carbon. Some might also contain a fifth element, sulfur. (Hope this helped!)
Starfish move slow because of the material that is on the body. Also because they have a water vascular system. Water goes into the canal and they move based on that system.
Why don't you got to the beach and look at that part;)
Hope this answer helped!<span />
<span>The number of humans on earth is experiencing exponential growth. The amount of growth is proportional to the amount of humans on earth to begin with; the more humans there are, the more growth there will be.</span>
Probability is the likelihood of something happening or being the case.