The correct answer is - b. 1993.
Even thought he European Union has its origins and basis from the 1950's and onward, it has been officially established as we know it nowadays in the year of 1993, in Maastricht, Netherlands.
It is a union of European countries, with the purpose of joint and supportive economies, open borders between the member states, political union, and also a fight against the nationalism on the continent and trying to make the multiple ethnic groups feel like Europeans (but hasn't seen any success whatsoever).
Answer is Boers. They're most famous for the Boer Wars in South Africa when the Dutch Boers fought the British Empire (They lost).
Hope I helped and please rate my answer :)
D. the Mexican Cession, through the Mexican-American War
hope this helped
Answer:
It can mostly hurts our health, which is just obvious. The environment can create stress, which can impact our bodies in many ways. This is because our nervous, endocrine, and our immune system are constantly interacting. I hope that helped so mainly it just hurts us and our health and our bodies.
(IF I GOT ANYTHING WRONG HERE IM TRULY SORRY!)