Answer:
sound waves. they come in longitudinal waves and vibrations. echo is wrong though youre right on that one
Answer:amino acids
Explanation:
that’s what the dna is made out of
It will spontaneously decay into other stable elements
Answer;
Acid rain is mostly a problem in the Northern Hemisphere.
Explanation;
This can be attributed to the fact that the area has a large, densely populated cities and a concentrated number of industrial and power plants in an area. These factors contribute to acidic gases in the environment such as sulfur oxide, nitrous oxide, which mix with rain water to form acidic rain. Additionally, prevailing wind direction which brings with it the pollution from the midwest to the north east.
Answer:
<u>Inheriteted/Beneficial</u>
Explanation:
<em>First drop down</em>: "Sickle cell disease is passed on from parent to offspring."
<u>Inheriteted</u>
<em>Second drop down</em>
A increased resistance to a bad thing (malarial parasites) would be <u>Beneficial</u>
