Answer:
it's A endothermic its when two objects rub each other to form heat this is also known as friction force
I think 14 are produced because if you go up by that you get it
Answer:
It comes from same parent material.
Explanation:
The two rocks have some similar minerals which indicates that they are comes from the same parent material but with the passage of time it is mixed with other minerals due to which they are some different in composition from one another so we can conclude that they comes from the same parent material due to the presence of some similar minerals.
Chlorine. Electronegativity rises as you go up and to the right on the periodic table.
