Why Continental and Scientific Rocks are different ages. actually environmental science own words please need it now

How does using straws hurt the sea turtles?

How many chromosomes are in a gold fish?

What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen