Answer:
the couler of the pray. how bright they are
Explanation:
Answer:
A. A Densley populated country.
Explanation:
Answer:
DIFFUSION
Explanation:
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
Sometimes you mix different substances and you don't make new substances but mostly of the time you do make new substances , so the answer is chemical change.