While cities cover just 1.2% of Asia’s land area, half of the continent’s 4.5 billion people will live in cities by 2023. Along with rising living standards and increased reliance on passenger cars, many cities are increasingly clogged. In many a country, a properly built-out mass transit system is just an afterthought. We wonder: Which city currently has Asia’s longest subway system?
D. New Delhi
The effects of the use of sugar on people’s health remains a very contentious issue. We wonder: Which of the following statements are true about the public health debate on sugars?
A. The sugar industry has a lot of influence
B. Consumers are shifting toward healthier foods
C. Consumers still consume too much sugar
D. Taxing sugar is complicated
Rechargeable battery technology has existed since 1859. Today, it is an increasingly critical component of consumer electronics, electric vehicles and renewable energy storage. This transformation is dependent on the widespread availability of some specific raw materials. We wonder: Which of the following frequently used materials is most likely to involve significant geopolitical risk?
As China’s rise continues, it has been alternatively cast as a peer, a competitor and rival, or as a potential antagonist of the United States. But to what extent is China fully comparable to the United States yet? Specifically, in what respect is China 2% greater than the United States?
B. Life expectancy
C. Per capita GDP
D. Land area
For half a century, the continent of Africa stood out as the center of “leaders for life” – politicians who managed to hold on to power for decades. Now that trend is returning to major nations on the world stage. We wonder: Which of the following major countries has the most effective presidential term limits?
B. United States