Answer:
One could be in the cell. The cell respires, thus producing carbon dioxide in it. So the concentration builds up in the cell. Diffusion is the net movement of particles from a region of high concentration to a region of low concentration, and the carbon dioxide concentration outside the cell is less, therefore the carbon dioxide molecules moves outs of the cell.
Another scenario is when perfume is sprayed into the air. The perfume particles collides with the air particles (lower or no concentration of perfume). This process goes on and on. This is diffusion since the concentration perfume particles collides with the less concentrated particles of perfume.
It’s the second one. H,D,C,F,B,G,E,A
The least reactive element in the third period is argon.
Answer:
Zoologist
Explanation:
A person who specializes in the study of animals is called a zoologist. Zoologists who study certain kinds of animals have their own names.A botanist is a scientist who studies or experiments with plants. These plants may include a range of organisms, including flowers, trees and algae. Botanists are a type of biologist. Botanists study all forms of plant life.
