Q: What property of certain states of matter can be given in units of millimeters of mercury? Choices: - solvency - gravity - velocity - pressure A:
pressure

Q: What are usually planted in rows with bare soil in between the rows? Choices: - corn - beans - trees - crops A:
crops

Q: Q: What type of reaction causes two substances to combine to make a single substance? Choices: - component reaction - spontaneous mutation - metabolism - composition reaction A:
A: composition reaction

Question: Q: A tumor of what gland can cause hypersecretion of growth hormone? Choices: - tissues gland - Pancreas - Parathyroid - pituitary gland A:
Answer: pituitary gland

*Question*
Q: Deficiency of what mineral causes bones to become porous and weak? Choices: - potassium - magnesium - zinc - calcium A:
**Answer**
calcium

Q: Different isotopes of an element have different mass numbers because they have different numbers of what? Choices: - protons - electrons - nuclei - neutrons A:
neutrons