The Phanerozoic eon spans how many years?

i got something better   a catchphrase here it is

ahem  

ahem

what the squwock

explanation:

sex cells are usually half's then they find another half and make a fertilize egg

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.