(Question)
Q: Motion of water molecules helps break up interactions between what? Choices: - ions or hormones - acids and bases - enzymes and acids - solid ions or molecules A:
(Answer)
solid ions or molecules

(Question)
Q: What do we call an interruption in the normal conduction pathway of the heart? Choices: - heart attack - infarction - heartburn - heart block A:
(Answer)
heart block

(Question)
Q: What describes the way light reflects off of the surface of the mineral? Choices: - intensity - density - hardness - luster A:
(Answer)
luster