(Question)
Q: What term is used to describe anything that takes up space and has mass? Choices: - size - weight - opacity - matter A:
(Answer)
matter

(Question)
Q: What scale measures acidity? Choices: - frequency scale - richter scale - salinity scale - ph scale A:
(Answer)
ph scale

(Question)
Q: What does the urea cycle process? Choices: - calcium - urine - oxygen - nitrogen A:
(Answer)
nitrogen