Q: Some living things on the ocean floor are sources of what human necessity? Choices: - hormones - steroids - pesticides - medicines A:
medicines

(Question)
Q: What is a purification process where the components of a liquid mixture are vaporized and then condensed and isolated? Choices: - conduction - sterilization - dispersion - distillation A:
(Answer)
distillation

Ques: Q: All cells need what for energy? Choices: - oxygen - light - insulin - glucose A:
Ans: glucose

(Q).
Q: A biofilm is a colony of prokaryotes that is stuck to what? Choices: - the middle - the bottom - skin - surface A:
(A).
surface

Ques:Q: Two important types of waves include longitudinal waves and what other kind? Choices: - phenomena - slow - irregular - transverse A:

Ans:transverse

Ques: Q: The point in front of a mirror where the reflected rays intersect is known as what? Choices: - reflective point - boundary point - periodic point - focal point A:
Ans:
focal point