Testing the first hydrogen bomb
B. appointed by the president and confirmed by the senate
Answer:
ertyr
Explanation:
<h3>because I think it's not that bad of it lol I'm not even a question is a little too and it was the same 8ball and the same as you dont kno and the new frand version has been in for the past two weeks but it's all guu but it's still the only thing you have good to say but it's just not that much of an accident that is not the case in which you have the honors for u no fufk you are so good to be </h3>
The correct answer for the question that is being presented above is this one: "B. mass extinction of land and sea animals." The end of the paleozoic era was signaled by mass extinction of land and sea animals.
Here are the following choices:
<span>A. the development of humans
B. mass extinction of land and sea animals
C. the development of organisms with hard parts
D. both a and b</span>
