The correct answer is that when a species is made up of different smaller groups, each of those smaller groups is known as a variety.
Answer:
because, it resembles the properties of alkali earth metals as well as halogens ! OwO
Explanation:
" Hydrogen resembles the properties of alkali earth metals as well as halogens. Hydrogen has one electron in its valence shell and it also needs one more electron to get stable. ... For this the hydrogen is placed separately in periodic table ! "
P.s: sharky said thanks for the points !
I don’t know how to explain it but this might help
Answer:
Fresh Water
Explanation:
Salty water is the most abundant