B. through the Treaty of Paris, at the end of the Seven Years’ War
Answer:
Australia pull factors:
-job income
-job opportunites
-lots of space
-better life/cleaner air
-friends and family
Australia push factors:
-extreme weather/ natural disasters
-communal violence
-racism
-dangerous animals
the world's current population is 7.3 billion and the world population in 1915 was 1.8 billion. The increase over the past century is 7.3 billion - 1.8 billion = 5.5 billion. So, the correct answer would be "more than 5 billion" (option D).
