Answer:
Dee must have closed the door.
Oceans produce approximately 80 percent of the oxygen our planet needs to support animal life. Pollution that reaches the ocean through dumping, oil leaks, runoff, and other processes interferes with that oxygen production and poses a real threat to the oxygen content in our atmosphere. If the oxygen content decreases, it is likely that carbon dioxide will increase. This could have dramatic consequences for life as we know it.<span> </span>
Maya likes to swim in the ocean rather than swimming inside the pool
I believe it means some things you set out to do become harder and Difficult to get out of, But you should think of the best option to do and make the best out of a bad situation.