(Question)
Q: These microorganisms are abundant in the human digestive track and serve many roles. what are they? Choices: - antioxidants - pathogens - tumors - bacteria A:
(Answer)
bacteria

(Question)
Q: A quarry, which produces rocks and minerals used to make buildings and roads, is an example of what type of mine? Choices: - strip mine - fracking - gold mine - open-pit mine A:
(Answer)
open-pit mine

(Question)
Q: The kinetic energy of molecules is generally proportionate to what other property that they have? Choices: - variation - mass - precipitation - temperature A:
(Answer)
temperature