5) A plant in the popular science offices Researchers from the American Chemical Society detailed how certain types of houseplants are effective at...

5) A plant in the popular science offices Researchers from the American Chemical Society detailed how certain types of houseplants are effective at removing indoor air pollutants. Their findings offer a cheap solution to a pervasive problem. Indoor spaces can often contain volatile organic compounds (VOCs), like acetone, benzene, and formaldehyde, usually found in paint, furniture, dry cleaned clothes, printers, and cleaning supplies, and can cause serious health problems. Inhaling large quantities of these compounds can lead to dizziness, allergies, and asthma. One common method of purifying contaminated air is with expensive air filtration systems, but this new, leafy development could soon become a viable second option. Five different species of houseplants were exposed to eight common VOCs over several hours in a sealed chamber, and the results were impressive. All of the five plants were able to absorb acetone, but the dracaena shrub astonishingly pulled in 94 percent of the chemical. Out of the five, the bromeliad tested the highest for air filtration qualities, removing 80 percent of six out of the eight VOCs used. Vocabulário: houseplants (plantas de casa); pollutants (poluentes); pervasive (persistente); volatile (volátil); compounds (compostos); acetone (acetona); benzene (benzeno); formaldehyde (formaldeído); dizziness (tontura); asthma (asma); filtration (filtragem); dracaena (dracena); astonishingly (impressionante); bromeliad (bromélia). ALL of the alternatives are information from the text. Choose the alternative with THE MAIN IDEA: Selecione uma alternativa: a) Air filtering systems are way more expensive than houseplants. b) Volatile Organic Compounds can be responsible for health problems, including asthma. c) Bromeliad and dracaena plants are great air filters. d) Houseplants can be a cheap, green solution to a very common problem. e) Five different species of plants were used on tests about indoor air quality.