Diffusion.
diffusion is passive, and the oxygen and carbon dioxide move to the area of lower concentration
Answer: 2 and 3
If Evander wants to compete in a bodybuilding competition some questions he should ask when selecting a product is if the source is credible, if the information provided is then accurate and also if the product is cheap since it can also affect as how many can he purchase on that product.
Stress comes from being over worked or excessively involved in things that is too much to take , while asthmatic attack is due to a chronic problem that partaken on the person lungs and heart condition
