Answer: The contracting cloud is then called a protostar. A protostar is the earliest stage of a star's life. A star is born when the gas and dust from a nebula become so hot that nuclear fusion starts.
Explanation:
Answer: Atoms are the basic building blocks of all matter, living and nonliving. They are made up of subatomic particles (neutrons, protons, and electrons)
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Hope thats correct and helps! :)
Answer:
I believe so. The shapes and ect. of bones determine how animals are evolving and how they will evolve more.
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I hope this helps by the way. I'm not completely sure tho.
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Explanation:
The density of a liquid determine if it will float or will in another liquid. It will float if it is more dense than the liquid it is placed in
