He accomplished several things such as leading an expedition to explore the strait of megallan.
Answer: I’m sorry I don’t speak that language.
Explanation:
Answer: Antarctica
Explanation: According to NOAA.com "What we call the ozone hole is a thinning of the protective ozone layer in the stratosphere (the upper layer of Earth's atmosphere) above Antarctica that begins every September. Chlorine and bromine derived from human-produced compounds are released from reactions on high-altitude polar clouds."