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Basically, the meteor caused there to be an increase of Carbon Dioxide, and less oxygen in the atmosphere :P I really hope this helps
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D. Greenhouse gas feddback
I'm not for sure but I believe this is the answer sorry if I get it wrong in advance
Maybe post the picture to your problem if you need help
<u>Answer:</u>
The event of Brexit was when Britain decided to exit from the rest of the European countries. Considering the immigration policy of the Brexit, it decided that it will have the same immigration policy for the European countries like it has for the rest of the countries of the world.
It also decided to cut the number of people entering Britain because it wanted to give more employment opportunities to it's own citizens and reduce other races coming.