The 20th century was marked by rapid population growth, with the world population nearly quadrupling from 1.6 billion to 6.1 billion. However, the 20th century was also shaped by major events that exerted downward pressure on population increases. We wonder: Which of the following events caused the largest population slowdown?
Over the tens of thousands of years of human history, billions of people have lived on planet earth. And today, the world population stands at around 6.7 billion people. We wonder: What percentage of the people who ever lived on earth are alive today?
Across the world, women are making great strides in just about every professional arena — including politics. We wonder: Among the world’s ten most populous nations, how many have not had a woman as head of government or state in modern times?
Apple's comeback story from the throes of near corporate failure in the mid-1990s is inextricably linked with founder Steve Jobs rejoining the company in 1997. Far beyond the Mac personal computer, the company has now reached iconic status in the design world and the market for electronic gadgets. We wonder: Which of the following statements are true?
The 47 countries in sub-Saharan Africa have a total of 743 million inhabitants, about as many as the EU and the United States combined. However, the region accounts for only a small part of the world economy. We wonder: What percentage of sub-Saharan Africa's economy is accounted for by one single country, South Africa?