PLEASE HELP A STRANGER OUT :(

explanation:

on disadvantage of hydroelectric power is the cost. another disadvantage of using hydroelectric power is finding a water source powerful enough to harvest hydroelectric power.

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint

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.

a bird that nests only in a particular tree species.