Answer:
The answer is A, extrustion
Explanation:
Answer:
absolute brightness
Explanation:
The observational fact about a cepheid variable star that leads to a measurement of its distance from earth is that its period of variation is directly related to its absolute brightness
Rollin down a backwood, Tennessee byway. One arm on the wheel, holdin my lover, with the other.
Desert streams has more flash floods than the ones in humid locations. In other words, desert streams only get their water from rain.
