Answer:
Precambrian period
Step-by-step explanation:
Since the Great oxidation period = 2.4 Billion years ago era = Precambrian period.
Micro-fossils attributed to cyanobacteria are abundant during the Proterozoic that came later 2,5 billion years ago and ended 540 million years ago,
Answer:
D,
Step-by-step explanation:
the is the value of b in ax -by =-5
D , cant isolate b
0.8 is greater because it is a positive number..
Answer:
9inch
Step-by-step explanation:
4 children i think. since you’re halving 18 you will half the 8 as well
