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: The gravitational force between two objects decreases as the objects move further apart.
 Question: Would an astronaut feel a lesser gravitational pull from the Earth when he is standing 
 Choices: A)on the floor of his house 
B)on the surface of Mars?
on the surface of Mars?

Paragraph: If salt is added to a volume of water, there are more molecules in the same volume, so the water is denser.
 Question: When water absorbs salt the water becomes 
 Choices: A)more dense 
B)less dense
more dense

Paragraph: Decreasing air temperature increases atmospheric pressure.
 Question: If James measured the air pressure in the winter and compared it to the air pressure in the summer, which season would have less pressure? 
 Choices: A)winter 
B)summer

winter