5. do any of the regions show a decline in population growth rate from 1990-2010? (look at the line
graphs you made). hypothesize two possible explanations of what could be happening in this region
that would slow down growth rates.

i believe the answer is a or 1

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.