Because the gravity of the sun keeps all planets in their orbits :3 hope I helped
B. a volcano that erupts in blasts of the pyroclastic matter. D. would be wrong because the shield volcano can have explosive eruptions but they are generally quiet
If you cut a flatworm in half, both halves can grow into a new individual by fission.
There are
50 protons in tin
50 electrons in tin
And 69 neutrons
Hope this helps