Question: A drinking water reservoir for a small town develops a blue-green algae bloom. The town hires a company to eliminate the problem. Which of the following should the company investigate first as a likely source of the problem?
Choices:
a pit where granite is ground up into gravel
a neighborhood where lawn chemicals are used
a junkyard where old cars are salvaged for parts
a grain elevator where corn and soybeans are stored
Answer: B