question: Write a question you would see in a school textbook. OPTIONS:
- a colloid
- a solution
- a suspension
- an evaporation
answer: What is made when sugar is dissolved in water?

question: Write a question you would see in a school textbook. OPTIONS:
- discovering new reservoirs of water in the aquifer
- reducing water usage through conservation measures
- combining hydrogen with oxygen to make water
- piping in water from an aquifer elsewhere
answer: As the population in an area grows, water usage increases. Eventually, water usage can outstrip the supply. Which measure to increase the amount of available water demonstrates the best stewardship of the resource?

question: Write a question you would see in a school textbook. OPTIONS:
- 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:
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?