PLEASE HELP ASAP! AND PLEASE DO NOT GIVE ME ANY VIRUSES! What niche do earthworms occupy in an ecosystem?

Earthworms are nature's recyclers; they break down dead plant materials into compost.

Gardeners use earthworms to make compost tea.

Earthworms break down hard rocks and minerals into soil.

Earthworms are hermaphrodites.
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You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.