Which part of the earth system contains the air we breathe?

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

Ineed the answer asap. in order to be considered alive, an organism must simultaneously possess the characteristics of homeostasis, heredity, cells, reproduction, and

Select the true statements about eubacteria. most live as decomposers and heterotrophs. most only thrive in a narrow range of environments. certain eubacteria are responsible for food poisoning. eubacteria thrive in extreme environments.