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: More pollutants mean poorer air quality.
 Question: When a river gets emptied of a lot of waste chemicals it becomes 
 Choices: A)cleaner 
B)dirtier

A: cleaner
****
Q: Paragraph: The darker the urine, the less water it contains.
 Question: Mona urinated yesterday morning and the urine was very light. When she urinated today the urine was very dark. Which urination contained less water? 
 Choices: A)yesterday morning 
B)today

A: today
****
Q: Paragraph: Many observatories are built on high mountains. There is less air above the telescope, so there is less interference from the atmosphere.
 Question: Milo owns two telescopes, one at the top of a mountain and one at the base. If he looks through the one at the top of the mountain, how much interference can he expect compared to the one at the bottom of the mountain? 
 Choices: A)more 
B)less

A:
less
****