I believe the answer is general environment.
Both of them essentially meant all the factors and conditions that affect economic situation in a nation as a whole.
This usually include things such as the legal policies that made by the government, The inflation rate that experienced, Resource availability, etc
Well it would depend how cold it would be, but I would say if it's below freezing cold, personally (when I go skiing actually) I would dress up in an under layer thing (I don't really know what you call it), a fleece sweater, (assuming there's snow) snow pants, and a jacket.
If you're climbing Mt. Everest, that's a whole different story.
Answer:
Globalization has made migration much easier through better communications, dissemination of information through mass media and improved transport, among others. It is the increasing trade and investment flows in many regions, which facilitated interest and awareness in migration.
Because the people have never been united
Perhaps the most single valuable authority you have as president in this way is to issue an executive order, which can commit troops to a conflict for a limited about of time without Congressional approval. Tools of foreign policy would include sending in diplomats to try to negotiate peaceful terms.