Mulch is made out of leaves, straw or compost used to cover growing plants to protect them from the wind or cold.

In the context of the environment, "mulch" is a layer of material that is spread over the surface of soil in order to protect it and improve its health. Mulch can be made from a wide range of materials, including wood chips, leaves, grass clippings, and compost, and it is typically applied in a layer that is several inches thick.

Mulch can have a number of benefits for the environment, including the following:

• Soil protection: Mulch helps to protect soil from erosion and compaction, which can lead to healthier soil structure and improved water retention.

• Soil moisture: Mulch helps to retain moisture in the soil, which can be particularly important in dry or arid climates.

• Soil temperature: Mulch helps to regulate soil temperature, keeping it cooler in the summer and warmer in the winter.

• Weed control: Mulch can help to suppress weed growth by blocking the sunlight that weeds need to germinate and grow.

Here are a few examples of how "mulch" might be used in the context of the environment:

• Landscaping mulch: Mulch that is used in landscaping to improve the appearance and health of gardens, lawns, and other outdoor spaces.

• Orchard mulch: Mulch that is used in orchards to protect tree roots, retain moisture, and suppress weed growth.

• Agricultural mulch: Mulch that is used in agricultural settings to improve soil health and reduce erosion.