Ques:Answer the following question given this paragraph: The rate of the expansion of the universe is increasing. The cause of this increase is unknown; one possible explanation involves a new form of energy called dark energy. Q: What is happening to the rate of the expansion of the universe? Choices: - it is decreasing - it is stable - it is unknown - it is increasing A:

Ans:it is increasing
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Ques:Answer the following question given this paragraph: Water has high surface tension because of extensive hydrogen bonding. Q: What has high surface tension because of extensive hydrogen bonding? Choices: - hydrocarbons - air - gases - water A:

Ans:water
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Ques:Answer the following question given this paragraph: If a solute is a gas, increasing the temperature decreases its solubility. For example, less carbon dioxide can dissolve in warm ocean water than in cold ocean water. Q: If a solute is a gas, increasing the temperature will do what? Choices: - increase its solubility - have no effect - change to liquid - decrease its solubility A:

Ans:decrease its solubility
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Ques:Answer the following question given this paragraph: Mass and volume are examples of extensive properties. Q: Mass and volume are examples of what kind of properties? Choices: - dynamic properties - exclusive properties - varied properties - extensive properties A:

Ans:
extensive properties
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