When they sleep the want to reduce the high number of risk in the chronic
Oxygen, nitrogen, carbon, hydrogen NOT magnesium
Wavelength<span> is the distance between one point on a wave to a point on the same part of the next wave. </span>Wavelength<span> is usually measured from crest to crest or trough to trough. The crest is the highest point of the wave, and the trough is the lowest point. Amplitude is the maximum displacement of the wave.</span>
Answer:
The X and Y sex chromosomes
Explanation: