The air that we breathe contains oxygen, water, nitrogen, dust, pollen, pollution, and
other materials. we can clean air using an air filter. air is most likely

a. an element

b. a molecule

c. a mixture

d. a compound

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.

What kind of bond is created by the attraction between atomic particles of opposite charge? ionic bond hydrogen bond covalent bond nuclear bond

How do ratio scale and diagrammatic scale work