The difference between analog and digital signals is that an analog signal is a continuous electrical message while digital is a series of values that represent information. Analog is conveyed by electrical current variations.
Your correct answer is D metals!
I think B is the answer The Clean Air Act That prevented air pollution and protected the ozone layer as well as promote public health. This act gave Enviromen. Protection Agency the power to take effective action fighting environmental air pollution
Prey Definition:
Any animal that is killed and eaten by another animal.
Answer:
False
Explanation:
Only plants have chloroplast.
