Which tool should you use to break up hard soil and to pry rocks apart?
1.altimeter
2.sieve
3.hand lens
4.geological pick

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies

that is wrong, its not thymus.

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.

not: both offer magnification to the atomic level.