This is determined by its atomic number. The atomic number of an element determines its protons. So for example....
The atomic number of Boron is 5, therefore....the protons are 5.
Because the earth is in an angle so the northern hemisphere receives more heat and vice versa
Answer:
It would be the cell theory
Filling of the heart and needing to pump the blood back out at an also increased rate
I'll need to see the choices/options in order to answer.
