This is a test of commonsense. Complete the next sentence:

How to apply mulch
Select an organic mulch to add nutrients to your lawn.
Organic mulches include wood chips, straw, grass clippings, chopped leaves, and compost. When the mulch breaks down, it naturally adds nutrients to the underlying soil.
Organic mulch will also help with water retention, weed prevention, and will protect plant roots. Organic mulches won't, however, protect from pests.