You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).
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Question: Paragraph: By using multiple stages, empty fuel containers could drop away. This reduced the mass of the rocket so that it could fly higher.
 Question: David is getting ready to fly into space on a rocket. As the rocket shoots upwards, part of the mass attaches, allowing the rocket to go 
 Choices: A)higher 
B)lower

Answer: lower


Question: Paragraph: The higher the pH value is, the stronger the base.
 Question: If Jim increases the pH value of his swimming pool, the base becomes 
 Choices: A)stronger 
B)weaker

Answer: stronger


Question: Paragraph: If we increase the resistance in a series circuit, by adding more resistors, then the total current decreases.
 Question: Quint removes resistors in a circuit to decrease the resistance. The total current in the series circuit 
 Choices: A)increases 
B)decreases

Answer:
increases