(Q).
Q: Splitting of the nucleus of a radioactive atom into two smaller nuclei yields what type of reaction, which releases a great deal of energy from a small amount of matter? Choices: - solar fission - nucleation - nuclear fusion - nuclear fission A:
(A).
nuclear fission

(Q).
Q: The entry of food into the esophagus marks the beginning of the esophageal phase of deglutition and the initiation of this? Choices: - relaxation - digestion - propagation - peristalsis A:
(A).
peristalsis

(Q).
Q: What do microbes use to make food? Choices: - nitrogen - sunlight - plants - chemicals A:
(A).
chemicals