We are talking about chemical reaction here. In a chemical reaction, substances that react are called reactants, and substances which are formed are called products. Atoms in the reactants break their bond, rearrange themselves and form new bonds to make the product. So no atoms are added or removed, which is called law of conservation of atoms/mass.
I believe it is c. The setting has little affect on the reader of a mystery.
One way is to share your problems with a friend or parent and tell them how you are feeling. Get plenty of sleep as well and eat healthy, avoid any alcohol and drugs. Hope this helped.
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There are dark regions with numerous craters called impact craters and they cover one-third of the moon. The remainder of the moon is covered by lighter regions which have many ridges and grooves . The ridges are as high as 2000ft and stretch for thousands of miles.</span>
