What causes the ozone hole over the South pole? AND What are El Nino and El Nina? How do they affect the weather in North America? What kind of cycle do they follow? Currently which is occurring?

1.This is a short research question. Please write in your OWN words and cite your sources.

What causes the ozone hole over the South pole?

Your answer should address the chemical and chemical processes involved as well as the conditions in the atmosphere that result in the hole being in that specific location.

2.This is a short research question.. you MUST write in your own words AND you must cite your sources. Please answer the following questions. Please note, answer should be no more than a paragraph (or less) for each question:

What are El Nino and El Nina?
How do they affect the weather in North America?
What kind of cycle do they follow?
Currently which is occurring?

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