Ques: Q: Salt in seawater causes it to have greater what, which is also affected by temperature and pressure? Choices: - mass - volume - area - density A:
Ans: density

Ques: Q: A circuit must be what in order for electric devices such as light bulbs to work? Choices: - open - down - cyclical - closed A:
Ans: closed

Ques: Q: What is the name of the muscle that contracts to cause the joint to straighten? Choices: - flexor - abductor - opposing - extensor A:
Ans: extensor

Ques: Q: When bread bakes, yeast releases which gas? Choices: - carbon monoxide - oxygen - hydrogen - carbon dioxide A:
Ans:
carbon dioxide