scientist began the search for additional subatomic particles in addition to electrons and protons because of

Order the following from smallest to largest atom, electron, quark, proton, neutron, molecule, nucleus

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space