At the end of the ________, over 96% of marine species and many terrestrial species became extinct, possibly because intense volcanic activity warmed Earths climate.
A. Precambrian
B. Permian
C. Cretaceous
D. Mesozoic
Answer:B
At the end of the ________, over 96% of marine species and many terrestrial species became extinct, possibly because intense volcanic activity warmed Earths climate.
A. Precambrian B. Permian C. Cretaceous D. Mesozoic