The word "atom" means:
the smallest imaginable thing
that which cannot be cut
that which cannot be seen
everything that is not vacuum

Which feature do highland climates have that lower elevation areas do not?

The minerals found in bones are deposited by living cells called

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.