Answer:
Two possible reasons for the massive extinction at the end of the Paleozoic Era are an asteroid collision and massive volcanic eruptions.
Explanation:
The massive extinction that occurred at the end of the Paleozoic Era is the biggest extinction from what is known so far. The majority of the species died out, and whole families of animals and plants were wiped out of the face of the Earth. It was only small and highly adaptable organisms that managed to survive and give rise to the later life-forms.
The two possible reasons for this massive extinction are an asteroid impact and massive volcanic eruptions. An asteroid collision would have created drastic changes in a matter of minutes and hours, with effects lasting for a long period of time, thus eliminating the majority of the life. Massive volcanic eruptions, with the Siberian super-volcano being the prime candidate, may have caused enormous amounts of carbon dioxide and sulfur dioxide to end up in the atmosphere, thus rapidly changing the living conditions on the planet.
Answer:
The GPA is a number that tells people how well or how high you scored in your classes on average.
how to find yours out is to divide the total points earned in a class by the total number of credits attempted. The result is the GPA for that program. ... If a student fails a class, there are no grade points earned for that course.
Explanation:
Answer:
Petroleum is oil from the remains of water organisms, the oil can be found beneath the ocean floor. Petroleum is a crude oil, and is made of pure chemical compound.
I’ll go with b I remember raising this and getting it right
It’s C or A (I’m debating it’s one of these 2) if it’s not not then I’m sorry
