TEXTO
Can eating meat be eco-friendly?
Every year we raise and eat 65 billion animals, that’s nine animals for every person on the globe, and it’s having a major impact on our planet.
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I like eating meat but I know that my food preferences, and those of a few billion fellow carnivores, comes at a cost. Nearly a third of the Earth’s ice-free land surface is already devoted to raising the animals we either eat or milk. Roughly 30% of the crops we grow are fed to animals. The latest UN Food and Agriculture Organisation reports suggest livestock are responsible for 14.5% of man-made greenhouse gas emissions - the same amount produced by all the world’s cars, planes, boats and trains.
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The problem lies in what the cows eat. Unlike most mammals, cattle can live on a diet of grass, thanks to the trillions of microbes that live in their many stomachs. These microbes break down the cellulose in grass into smaller, nutritious molecules that the cows digest, but while doing so the microbes also produce huge amounts of explosive methane gas which the cows burp out.
Fonte: http://www.bbc.com/news/science-environment-28858289. Acesso em 27/08/2014. Adaptado.
O sufixo –er na palavra smaller (último parágrafo) tem a mesma função morfológica que o sufixo –er em qual das seguintes palavras?