What device can be used to remove toxic pollutants from power plant emissions?
a. catalytic converters
c. bioreactors
b. scrubbers
d. mufflers

Scrubbers

Explanation: An SO2 scrubber is found in the power plant. This is a flue gas  desulfurization technology which helps in the removal of the SO2 emissions from the power plants.

This technology helps in the removal of gas from the coal fired plant. It works by spraying a slurry of limestone where the SO2 reacts with the calcium present in the limestone.

This removes sulfur from SO2 which is harmful for environment.

dopamine..

"it was found that some people who were taking the drug l-dopa to raise their levels of dopamine were developing schizophrenic-like symptoms supporting research a strength of the dopamine hypothesis is that there are many studies which have shown support for the neurochemical explanation."