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Answer</h2>
Three types of covalent bonds, they can form
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Explanation</h2>
Carbon has four valence electrons in the outer shell but it forms three covalent bonds with another carbon atom. i.e Single bond, double bond and triple bond.
- The single bond is called Alkanes e.g. Methane, Propane etc.
- Double bonds are called alkenes e.g. Ethylene, Propylene etc.
- Triple bonds are called alkynes e.g. Ethyne, Propyne, Butyne etc.
Answer: I believe the right answer is B) atmospheric nitrogen→bacteria→plants→animals. I'm pretty sure!
Sorry for answering a bit late, hope that helps! :-)
I think this is False since I think earth can hold life since there’s gravity and many sources of food and water to have as well as shelter. Also there’s oxygen so we can breathe. And god brought us her. So yeha ♀️
Answer: C.
because I translated it to what the answer is
Answer:
G 0 is a resting phase where the cell has left the cycle and has stopped dividing. The cell cycle starts with this phase.
