Robert is looking at the screen of an instrument that shows several waves. Waves
From point X to point Y, how many total wavelengths are represented?
o 1
2

О
3
4

the darker peppered moth species were favored due to the fact that the industrial revolution had made all the nearby trees a darker color instead of white.

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.

answer; lower are;