An atom is the most basic unit of matter
Explanation:
diffusion is movement of molecules from a region of higher concentration to a region of lower concentration
2a)molecules will be moving out of the cell
b)molecules will be moving into the cell
3i)molecules will be moving into the cell
ii)molecules will be moving out of the cell
iii)there is no movement since concentration is equal inside and outside the cell
Answer:
b
Explanation:
The answer is B becuase "where do people buy tools is not a scientific question, and neither is C.
