I think the answer is A not sure tho ! Might be wrong .
Answer:
Charles Darwin was a naturalist from the 1800's. He developed the theory of natural selection which became the foundation of modern evolutionary studies. Natural selection is the survival and reproduction of individuals and how they adapt.
Hydrogen has one valence electron. To make it an ion, you need to remove this valence electron. When you remove an electron, the element becomes positive because you are taking away the negative
Well , run off water plays a big part in this.
run off water is usually when water is in a puddle or on the ground and ran off into the sewer.
i hope this helps you a lot
