Answer:
Spectroscopy
Explanation:
They can determine its composition based on these wavelengths. The most common method astronomers use to determine the composition of stars, planets, and other objects is spectroscopy
The answer is C, since the black pig is heterozygous, it makes the majority black due to its dominant trait, but about 1 in 5 will be white
So if you take a 39 ft ladder and place its base 15 feet from the base of the wall, when you lean the ladder against the wall, the point where the ladder rests against the wall will be 36 feet above the ground.
Answer: 15 feet
.
Hope this helps you understand this problem a little better.