How do astronomers know which element is present where?
A. by looking for specific wavelengths...
Health, 24.03.2020 23:13 vanessa674
How do astronomers know which element is present where?
A. by looking for specific wavelengths of light that each element produces
B. by comparing the density of the gas to the densities of various elements
C. by measuring the temperature of each part of the gas
D. by observing chemical reactions taking place in the nebula
Answers: 3
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Pam is pregnant, and her baby already has all the genetic information needed to determine its sex, hair and eye color, skin color, and even some personality traits. what stage of development has her baby achieved? zygote embryo fetus blastocyst
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