Answer:
A. Gravity
Explanation:
The strong gravity, or "Pull" of the Earth is what keeps the moon in orbit.
I hope this helps!
I believe it is Nitrogen dioxide
Matrix are within the inner membrane of the mitochondria.
Active faults are structure along which we expect displacement to occur. By definition, since a shallow earthquake is a process that produces displacement across a fault, all shallow earthquakes occur on active faults. Inactive faults are structures that we can identify, but which do no have earthquakes.
That would be A.
Cells have specific receptors for different hormones that allow the intake of them.
