Name the chemical family to which each of the following elements belongs. KZU
(a) chlorine, CI
(b) magnesium, Mg
(c) potassium, K
(d) helium, He

Ascientist conducted an experiment and discovered that certain plants grow faster when given a particular amount of fertilizer. anouther scientist conducted the same experiment and got similar results. which concept does this best illustrate? a) repetition b) replication c) precision d) validity