Questões de Concurso

Texto 1

CAN A VIRUS MAKE YOU FAT?

Although the idea sounds more like the premise of a B movie than scientific theory two scientists at the University of Wisconsin in Madison believe they've found a virus that causes some people to get fat. Nikhil Dhurandhar and Richard Atkinson reported recently that when they injected a virus known as AD36 into mice and chickens, the animals' body fat increased. Because humans were unlikely to volinteer for such exiperimentation, the scientists decided to test for the presence of antibodies to the virus. Of 154

people tested, about 15 percent of those who were obese had the antibodies. None of the lean people did.

However, the findings don't necessarily prove that the virus caused obesity in the test group. As several virologists have pointed out, obese people may simply be more susceptible to such a virus.

Rainforest police target illegal logging

Brazil’s environment ministry has taken steps to save the rainforest by disrupting the illegal logging industry.

About $2.7 million dollars worth of illegally logged wood from indigenous lands were seized by environmental police during a surprise raid in Nova Esperança do Piria. According to Reuters, some 13 logging companies and sawmills were shut down while tractors, guns, and ammunitions were seized in the remote area […]

The government aims to reduce deforestation to a record low in the year to July. It hopes to ensure that deforestation, the cutting down or burning of the rainforest, does not exceed 3,700 square miles. Recent research has shown that the rainforest is a valuable global resource as not only does it harbour a variety of animal and plant species, but it also absorbs a significant amount of greenhouse gas carbon dioxide.

(adapted from http://www.coolearth.org/345/news-32/rainforestnews-155/rainforest-police-target-illegal-logging-632.html)

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Brazil’s environment ministry has taken steps to save the rainforest by disrupting the illegal logging industry.

About $2.7 million dollars worth of illegally logged wood from indigenous lands were seized by environmental police during a surprise raid in Nova Esperança do Piria.

According to Reuters, some 13 logging companies and sawmills were shut down while tractors, guns, and ammunitions were seized in the remote area […] The government aims to reduce deforestation to a record low in the year to July. It hopes to ensure that deforestation, the cutting down or burning of the rainforest, does not ex- ceed 3,700 square miles. Recent research has shown that the rainforest is a valuable global resource as not only does it harbour a variety of animal and plant species, but it also absorbs a significant amount of greenhouse gas carbon dioxide