The mass extinction at the end of the Mesozoic Era was caused by . a. solar radiation c. an ice age b. a meteor or asteroid colliding with Earth d. volcanic activity Please select the best answer from the choices provided A B

b. a meteor or asteroid colliding with Earth

Explanation:

for e2020. the answer would be some directions from the mountain range so we can find mt. whitney. to locate which direction is north, you should use a   compass. this would not only find mt. whitney, but also becuase of this long paragraph you would get points because it's not like anyone actually reads your work becuase once they read the first sentence it sounds dumb enough to not read becuase i'm not good at answering this but the answer is compass for your benefit.

for e2020 ; -;