To change only one variable which is very important than to test the experiment to match the hypothesis again, I think. It’s been a while since I was on that lesson♀️
.energy mechanical needs it Answer:
Yes.
Explanation:
Answer:
Protons are positively charged. When a nucleus emits an alpha particle, these changes happen: the mass number decreases by 4. the atomic number decreases by 2.
Explanation:
Answer:
The main function of the cell membrane is to protect the cell from the outer environment.
