TASK DEFINITION: You are given a sentence in English. Your job is to translate the English sentence into Japanese.
PROBLEM: This doesn't make any sense.

SOLUTION: 何の意味もないのにです

PROBLEM: Now in the Atlantic, the story is pretty simple.

SOLUTION: 大西洋を見れば一目瞭然です

PROBLEM: Well, you know, our own Earth has oxygen in the atmosphere to 20 percent by volume.

SOLUTION:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
私達の住む地球には酸素があり大気の20% を占めています

