What is the best description of gems

a- they are metallic
b- they are nonmetiallic
c- they are metallic ore
d- they are nonmetallic silicates

me

Which of these best describes wde by replicating the chromosomes c) the cytoplasm is divided between the two new daughter cells d) the nucleus opens to allow the chromosomes to enter the cytoplasm

New york city has 2,181 inhabitants per square mile. the state of alaska has 1.03 inhabitants per square mile. ecologists would say alaska has a low exponential growth population density birth rate carrying capacity

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes