What is one disadvantage of allowing an ecosystem to restore naturally? ( .) a.) the ecosystem would not be harmed by humans. b.) the ecosystem would restore balance quickly. c.) the ecosystem's food web would not be disturbed. d.) the ecosystem would take years to fully restore.

You want to lose weight and have been trying to decide which type of fad diet is best for you. you ask your doctor, who responds that a. fad diets are a temporary fix but generally don't have any side effects b. fad diets can be used several times a year to maintain a healthy weight c. fad diets can be risky for your health and, in the long run, do not work d. fad diets should never be used one right after the other; there should be a break between them select the best answer from the choices provided. a b c d

Heterogeneous mixture with larger particles that never settle is

What would be the net charge of 1 gram gold piece after removal of 1% of its electrons