(Q).
Q: What is the fourth planet from the sun? Choices: - Pluto - Saturn - Mercury - mars A:
(A).
mars

(Q).
Q: What is the name for the organs behind the head of a fish that absorb oxygen from water? Choices: - pores - alveoli - lungs - gills A:
(A).
gills

(Q).
Q: The explosion of nitroglycerin, which releases large volumes of gases, is what type of reaction? Choices: - energetic - exponential - endothermic - exothermic A:
(A).
exothermic