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: When a volume of water is cooled, the molecules move less vigorously, so same number of molecules takes up less space and the water is denser.
 Question: When we raise the temperature of water it becomes 
 Choices: A)less dense 
B)more dense
[A]: less dense


[Q]: Paragraph: Air pressure is less at higher elevations.
 Question: Air pressure is higher in the 
 Choices: A)mountains 
B)valleys.
[A]: valleys.


[Q]: Paragraph: But the more computing power that goes into the model and the care with which the scientists construct the model can increase the chances that a model will be accurate.
 Question: When we use weak technology to measure something it becomes 
 Choices: A)more accurate 
B)less accurate
[A]:
less accurate