Leachate is a solution, frequently highly contaminated, that develops when water permeates a landfill site. If and only if the landfill’s capacity to hold liquids is exceeded does the leachate escape into the environment, generally in unpredictable quantities. A method must be found for disposing of leachate. Most landfill leachate is send directly to sewage treatment plants, but not all sewage plants are capable of handling the highly contaminated water.

Which one of the following can be inferred from the passage?

Correct answer marked below

The ability to predict the volume of escaping landfill leachate would help solve the disposal problem.

If any water permeates a landfill, leachate will escape into the environment.

No sewage treatment plants are capable of handling leachate.

Some landfill leachate is send to sewage treatment plants that are incapable of handling it.

If leachate does not escape from a landfill into the environment, then the landfill’s capacity to hold liquids has not been exceeded.

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What this question tests

Whether you can draw a conclusion that must follow from the stated facts.

Choosing an option that could be true or is likely true — inference answers must be guaranteed by the passage.