Not really sure abot the answer but it seems like
D is the answer
one more time im not really sure
Answer: A.Light travels in a straight line., B.Light behaves in a predictable way. , D.Light curves around corners or obstructions
-Hope this helps<3
Your answer is true. Covalent bonds are bonds between two atoms, and those two atoms share electrons.
Answer:
last one
they can contain mercury that is Very harmful to humans
