The air that we breathe contains oxygen, water, nitrogen, dust, pollen, pollution, and
other materials. we can clean air using an air filter. air is most likely

a. an element

b. a molecule

c. a mixture

d. a compound

Many people try to eliminate fat from their diets. which is one reason it is necessary for humans to eat fat? a. eating fat is the fastest way to get energy. b. fat eliminates triglycerides from the body. c. saturated fats clear out the blood vessels. d. fat nerves transmit signals. , this is for apex in summer school.

What best describes the dropping height of a ball that bounces back up to a height of 45 cm

Which of the following is a true statement? a. individuals evolve to have adaptations. b. individuals have adaptations that can change over time. c. individuals have traits that may or may not make them successful at reproduction. d. populations cant evolve, only individual organisms.