Which of the following simple machines does a person use when raising a flag up a flagpole?

A. lever

B. wheel and axle

C. wedge

D. pulley

The only dry membrane is the

Mildew is a fungus that grows in wet areas and can slowly grow from microscopic to large stains in showers and sinks. Researchers are studying different sprays that could be used to slow down the growth of mildew.

Waste water from industries and domestic sources can be treated by chlorination or ultraviolet radiation. There are pros and cons to using either chlorine or UV radiation to kill harmful microorganisms.

How do oozes differ from abyssal clay? Discuss how productivity, destruction, and dilution combine to determine whether an ooze or abyssal clay will form on the deep-ocean floor

How does nondisjunction occur in meiosis

Which of the following are functions of lipids? Choose three correct answers. A. forming the exoskeletons of insects B. forming waxy leaf coverings C. forming bones and cartilage D. storing energy in fat cells E. forming cell membranes F.

The ability of the body to undergo prolonged whole body, large muscle activity is:

In humans a gene that has been identifoef as causing a type of skin cancer is the

Which one of the "big 3" macronutrients is the most calorically dense at 9 calories per gram?

What happened at Chernobyl? (first to answer this will be marked as the brainliest)