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Texto-base:
Read the text and answer questions 28, 29 and 30.
The Greenhouse Effect
1 A greenhouse is a house made of glass. The sun shines
right through the glass and makes it warm inside the
greenhouse. It is possible to grow flowers and
vegetables inside a greenhouse in the winter. Scientists
5 have a theory that a lot of carbon dioxide in the
atmosphere will act like the glass in a greenhouse. As
the sun shines through the carbon dioxide blanket, the
atmosphere will get hotter and hotter.
Carbon dioxide is produced by combustion, the burning
10 of fuel. It is being added to the normal atmosphere as
we have more and more cars, more and more houses
and industries. In short, more people produce more
carbon dioxide.
Scientists predict that as a result of more carbon dioxide
15 in the atmosphere, there will be a global warming, or a
long-term rise in temperatures over the earth.
(Adapted from “Time and Space”)
According to the text, we can infer that:
Read the text and answer questions 28, 29 and 30.
The Greenhouse Effect
1 A greenhouse is a house made of glass. The sun shines
right through the glass and makes it warm inside the
greenhouse. It is possible to grow flowers and
vegetables inside a greenhouse in the winter. Scientists
5 have a theory that a lot of carbon dioxide in the
atmosphere will act like the glass in a greenhouse. As
the sun shines through the carbon dioxide blanket, the
atmosphere will get hotter and hotter.
Carbon dioxide is produced by combustion, the burning
10 of fuel. It is being added to the normal atmosphere as
we have more and more cars, more and more houses
and industries. In short, more people produce more
carbon dioxide.
Scientists predict that as a result of more carbon dioxide
15 in the atmosphere, there will be a global warming, or a
long-term rise in temperatures over the earth.
(Adapted from “Time and Space”)
According to the text, we can infer that:
Resolução comentada
Mais CO2 na atmosfera leva ao aumento da temperatura.
O texto apresenta a teoria de que o CO2 age como o vidro de uma estufa, tornando a atmosfera cada vez mais quente. Infere-se que, quanto mais CO2, maior a temperatura.
Análise das alternativas
A) O CO2 vem da combustão em geral, não só de indústrias e carros. B) Inverte causa e efeito: o aumento de CO2 causa o aquecimento. D) O texto não define aquecimento global assim; fala de aumento de temperatura a longo prazo.
Referência: Interpretação de texto (inferência).
Resolução comentada do VaiConcursos.