<span>b. They release oxygen that organisms use to breathe.</span>
B. decreases steadily as the intelligence level decreaseshope this helps
A) Fad diets are extremeand do not include balanced meals. They are usually hard to maintain because of there extreme restrictions. Also the weight one loses while on a fad diet is generally gained back as soon as a person stops dieting
Depending on what water source you use, if your using faucet water your food will be clean but not totally.
If your using a lake, ocean, bodies of water your food will not be as clean, water from bodies of water are full of bacteria, and other contaminants.That being said, using a faucet is your best bet or even try to clarify water from bodies can help.
