A gas station installs an underground gas tank. Many people in the neighborhood fear the tank will spring a leak. How might a leaky tank affect the local watershed? Leaking gasoline will likely become runoff when it rains, contaminating local water bodies.

Leaking gasoline will likely move through the soil, contaminating water located underground.

Leaking gasoline will likely flow over the watershed divide, contaminating surrounding watersheds.

Leaking gasoline will likely have no effect on the local watershed.

  Leaking gasoline will likely move through the soil, contaminating water located underground

Explanation:

Since the tank is underground, any leak in the tank will be underground. It may contaminate local groundwater. Where that water nears the surface, as at seeps, ponds, lakes, or streams, the gasoline may contaminate runoff or surface water as well.

Of the choices offered, if you must pick one, the most appropriate is ...

  Leaking gasoline will likely move through the soil, contaminating water located underground.

b is the right answer for this question.