The answer is a. basalt. Gabbro rocks are more related to basalt in terms of chemical characteristics. They are both igneous rocks but basalt is an extrusive rock that cools quickly while gabbro is intrusive and cools slowly. So, basalt rocks are fine-grained while gabbro are coars-grained.
The graph is showing us the tide height in feet in the left side and the hight up and down.
I dont understand what you mean but importance wise the picture would be most impotant
They go to the brain then sent out to the rest of your body
