The Sun and the planets formed together, 4.6 billion years ago, from a cloud of gas and dust called the solar nebula. A shock wave from a nearby supernova explosion probably initiated the collapse of the solar nebula. The Sun formed in the center, and the planets formed in a thin disk orbiting around it
The answer is B. Genetic drift greatly affects small populations, but large populations can recover.
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>
