Answer:
Hello There!!
Explanation:
I believe the answer is a. how long ago the organism lived.
hope this helps,have a great day!!
~Pinky~
Cenozoic Era, Mesozoic Era, <span>Paleozoic Era, Precambrian Time</span>
The thing that makes coastal plains unique is that they are flat, low-lying pieces of land next to the ocean.
Explanation:
At the center its weight is zero. Or you can argue by symmetry: if the weight is not zero, in what direction would it act?