Which statement about mulching mowers is true?

• A. They reduce clippings disposal
• B. They require less mowing
• C. They increase thatch
• D. They feed turf when clippings decompose

Answer: (D)

Mulching mowers are designed to chop grass clippings into tiny pieces and return them to the lawn. Those fine clippings quickly break down in the turf and release nutrients back into the soil, especially nitrogen, which feeds the grass as it grows. That nutrient recycling—feeding the turf when clippings decompose—is the most direct and reliable benefit of this mowing method, which is why this statement is true.

In practice, mulching can reduce the amount of clippings you need to bag and dispose of, but mowing frequency isn’t inherently changed by using one, and whether it affects thatch depends on conditions and decomposition rates—not the mower alone.