A burrowing annelid worm that lives in the soil, important in aerating and draining the soil and in burying organic matter.
- ‘Soils may harbor 50 to 500 earthworms per square meter; they keep soils aerated, and their castings fertilize the soil.’
- ‘Centipedes are predatory, feeding on soil invertebrates such as earthworms and terrestrial insects.’
- ‘The burrowing activities of earthworms increase the soil horizons most conducive to worm health and growth rate.’
- ‘He doesn't plow when the soil is wet and, by not using chemicals, doesn't kill beneficial organisms such as earthworms and bacteria, which aerate the soil.’
- ‘Most nematodes, also called roundworms, are small, simple worms lacking the segmentation of the more familiar earthworms.’
We take a look at several popular, though confusing, punctuation marks.