After visiting a wastewater treatment plant, Shelley has a few questions.Which question can be answered through scientific investigation?
A
How much wastewater is treated per day in the wastewater treatment plant?B
Are employees at the wastewater treatment plant satisfied with their jobs?C
Are the investors unhappy with the revenue generated by the wastewater treatment plant?D
What should be the role of the government in promoting the wastewater treatment plant?