It is important because you need vitamins and minerals from them e.g. Scurvy no vitamin c
Answer:
m1*v1 = m2 v2
1200kgm/s=600kg*v1=(7+600)*v2
6000=607*v
v2=9.8m/s
Explanation:
its need velocity
The anwser is a. look it up or sum idek it fr
Because Precambrian rocks are in short supply, hence fossil evidence is harder to find.they only discovers sections of some Precambrian rocks there were no bones or shells to be permineralized.