Answer is Middle Paleozoic era.
Paleozoic era was in 542 Ma - 245 Ma and it has 6 periods as Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian.
360-280 Ma - forming of vascular plants with woody tissues, seeds and veins.
430 - 410 Ma - forming of jawed fishes and first amphibians.
420 Ma - forming of scorpions
360 Ma - forming of crustaceans.
Answer:
non-point source
Explanation:
This was a non-point source of pollution because this was not directed at a certain area or ocean. The oil was accidentally dropped into the ocean. It was not intentionally dropped by the oil well. The answer to the question is non-point source pollution.
Answer:
I don't know, and just to let you know B is not a number its a letter
Explanation:
He used single-lens microscopes, which he made, to make the first observations of bacteria and protozoa. His extensive research on the growth of small animals such as fleas, mussels, and eels helped disprove the theory of spontaneous generation of life.
It is ALL THE ABOVE
I hope this helps
