Ethanol produced from bioenergy starts with starch produced by corn and sugar cane :)
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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The flower would have adapted to allow the hummingbird to better pollinate it. I believe this to be true because it follows the process of adaptation.
D. Infrared images can show hot spots as red areas.
Agriscience is the right answer :)