Which items are abiotic factors of an ecosystem?

plants, insects, and land

bacteria, fungi, and soil

air, water, and rocks

autotrophs, sunlight, and wind

Which of the following statements best distinguishes a hypothesis from a theory? a. theories are hypotheses that have been proved. b.hypotheses are guesses; theories are correct answers c. hypotheses usually are relatively narrow in scope; theories have broad explanatory power. d. theories are proved to be true; hypotheses are often contradicted by experimental results.