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).

Paragraph: A decrease in greenhouse gas levels decreases global temperature and an increase raises global temperature.
 Question: If you are able to add greenhouse gases the temperature will 
 Choices: A)go up 
B)go down
go up

Paragraph: Its harder to overcome friction between heavier objects and the floor than it is between lighter objects and the floor.
 Question: If you tried to push a sack of unpopped popcorn or a sack of popped popcorn, both of the same volume, would it be easier to push the 
 Choices: A)sack of unpopped popcorn 
B)sack of popped popcorn?
sack of popped popcorn?

Paragraph: The closer the field lines are drawn together, the stronger the field being described.
 Question: John was in his office looking at the diagrams. He saw that as the lines were closer, the fields were 
 Choices: A)Stronger 
B)Weaker

Stronger