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).

[Q]: Paragraph: The more efficient a device is, the greater the percentage of usable energy it produces.
 Question: A very efficient pair of solar panels will produce 
 Choices: A)little energy 
B)a lot of energy
[A]: a lot of energy


[Q]: Paragraph: A stronger acid produces a greater concentration of ions than a weaker acid.
 Question: If Jim increases the strength of an acid he is playing with, the concentration of ions in that acid 
 Choices: A)falls 
B)rises
[A]: rises


[Q]: Paragraph: For a given medium, sound waves travel more slowly at lower temperatures.
 Question: Compared to sound waves travelling through a cup of ice water, would sound waves travelling through a cup of boiling water move 
 Choices: A)slower 
B)faster?
[A]:
faster?