C. jews, slaves, and gypsies from across europe were sent to concentration camps
Answer:
There were many inintended negative consequences. The state became crowded with people looking to find gold. The environment got destroyed and natives living in the area were removed from their lands that they lived in their entire lives.
Because there will always be water on earth, meaning that the cycle will never stop. And because the cycle is continuous and natural. I don't think anything can stop it from happening.
Answer: from Egypt to South Africa
Explanation: the British managed to link Mediterranean with Indian Ocean and South Atlantic in the end of 19th century. Like that they controlled strategic points in terms of geopolitics. But in fact decline of British Empire started already before 1850s.