|Question 7Verbal

Source Texts

Text
Microplastics are tiny pieces of plastic waste. Areas of the ocean with higher concentrations of microplastic particles also have smaller and fewer waves. A study by Yukun Sun and colleagues found that the concentration of microplastic particles cannot be the only reason for this reduced wave activity because the concentration of particles that would have the observed effect is much higher than that found in these areas of the ocean. However, they found that surfactants, chemicals often used to manufacture plastics, are released into the water from microplastics and have a much stronger wave-reducing effect.
According to the text, what did Sun and colleagues discover about surfactants?
They can be used to contain microplastics within certain areas of the ocean.
A
They are helpful for removing microplastics from the ocean.
B
They have a much stronger effect on wave activity than microplastics alone do.
C
They are mainly composed of water.
D