The statement which best explains why carbon is present in so many kinds of molecules is because <u>it can form four covalent bonds.
<em /></u>It isn't rare on Earth, so A is incorrect. It has valence electrons, so C is incorrect. It cannot become an ion, so D is incorrect.<u>
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Answer:
Net force=120N-90N=30N
30N to the right
Answer: Excretory
Explanation: My grandpa went through this recently and I had to learn all about it. :(
Answer:
a plant that is characterized by the presence of conducting tissue.
Explanation: