Question

Leia o texto para responder as questões abaixo
Air pollution is the effect caused by concentrations of solids, liquids or gases in the air that have a negative impact on the surrounding environment and people. There are many such pollutants, and they may occur naturally (from dust, wildfires and volcanoes) or from human activity, be visible or invisible, emit an odour or be odourless.
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Air pollution is the fourth greatest overall risk factor for human health worldwide, after high blood pressure, dietary risks and smoking. Latest estimates attribute 6.5 million premature deaths to air pollution.
1. According to the text, air pollution is caused by *
33 pontos
a) concentrations of many positive elements in the air.
b) carbon emissions from cars only.
c) concentrations of many negative elements in the air.
d) smoke from industries only.
me ajudem porfavorzinho :,))

Answer 1

Resposta:

Alternativa C)Concentrations of many negative elements in the air

espero ter ajudado