Those four crops, between them, account for about 75% of the calories people end up eating, although a lot of the soya is fed to animals first.It turns out that during the seasons in which crops grow, these arable areas had on average become significantly warmer in the 29 years after 1979.
But in the upper 700 meters, the waters had on average become more acidic by 0.025 pH units--matching the prediction of computer models, says Richard Feely, an oceanographer with the U.S. National Oceanic and Atmospheric Administration in Seattle, Washington.
In particular, the elderly, on average, become less adept at processing numerical information or recalling details presented in unfamiliar settings.
Over the course of a hundred years, the city's families, on average, became smaller, wealthier and better fed.
For all its dynamism since India opened up its economy in 1990, its men have on average become even thinner.
Americans on average became more prejudiced toward Arabs after the attack, as well as more likely to contribute to charities and more supportive of aggressive government action against suspected terrorists.
It exhibits a strong asymmetry in its coherent vortex dynamics: anti-cyclones on average become stronger and larger and proceed more rapidly in their merger and alignment interactions.
While Harrison et al. ([2007]) find that, in a representative sample of the Danish population, individuals on average become less risk averse after the age of 40; Barsky et al. ([1997]) and McCrae ([1993]) find that risk preferences are a stable character trait in adults.
Studies show that measures of cardiovascular disease rather than just risk factors show that people on average become worse on an Atkins diet.
