.Which statement best describes an environmental consequence of unlined landfills built close to water?

Landfills can produce carbon dioxide that leaks into the water.
Long-term exposure to mercury and lead in landfills can cause cancer.
Materials in landfills undergo decomposition for hundreds of years.
Coastal erosion can eventually allow waste to slip into water sources.

The statement that describes an environmental consequence of unlined landfills built close to water is; coastal erosion can eventually allow waste to slip into water sources.

Coastal erosion refers to the washing away of surface rocks, soils and particles due to moving water waves from water bodies.

Landfills are designated points for the collection of trash. Usually, landfills are lined to prevent water from entering into the landfill and also to avoid groundwater contamination.

If a landfill is not lined, and it is close to water, coastal erosion can eventually allow waste to slip into water sources.

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