It depends on how you worded your essay and what your views on global warming are, the way I would word it is "in conclusion global warming is real and changing drastically every minute, and we don't fully know exactly how it will affect the world long-term" that's one way you can say it.
There isnt any lines provided to pick from
#2 and #4 for sure, I'm not sure about the others. Probably not the first one.
Answer:
flood or tsunamy ) i know only this
The letter following the quotation needs to be capital. This is because what the person said is also a sentence.
Example: As Mark was walking he said, "This is a beautiful day!"
Happy to help!
