Question of the Day

Did the average global temperature increases of the 1980s and 1990s diminish Earth’s natural vegetation productivity?… Continue reading

Question of the Day

Are male immigrants who arrived in the U.S. during 1995-99 making as much economic progress as male immigrants who arrived in 1965-69?… Continue reading

Question of the Day

Adjusted for inflation using the Consumer Price Index, is the federal minimum wage now higher or lower than when it was first enacted in 1938?… Continue reading

Question of the Day

In the low-lying nation of Bangladesh, which is considered to be the world’s most endangered mainland from rising sea levels, how much land area was lost between 1973 and 2008?… Continue reading

Question of the Day

Which US. president formally ended diplomatic recognition of Taiwan and declared the Communist government in China to be the sole legitimate ruler of both China and Taiwan? Continue reading

Question of the Day

From 1982 to 2016, how much of the world’s tree coverage was lost?… Continue reading