When fusion stops our sun will lose its outer layers in an event called a ? 1.planetary nebula
2.hypernova
3.solar nebula
4.supernova

Which of the following is an advantage of solar energy?

The production of cells during mitosis into specialized function is recombination or differentiation

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