B. UNREFINED GRAINS
milk and cheese = dairy
meat and poultry = protein
fats and oils = fats
unrefined grains = carbohydrates
True because all of the chemicals from gas and the smoke from the pipes of cars pollute the earth
Answer:
Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them.
Explanation:The body's circulation is an essential link between the atmosphere, which contains oxygen, and the cells of the body, which consume oxygen.
