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).
One example: Paragraph: Many of the worlds people live with water scarcity, and that percentage will increase as populations increase and climate changes.
 Question: John's town used to have lots of water, back when there were only a few hundred people. However, now that the town holds several thousand people, the water availability is 
 Choices: A)scarce 
B)plentiful
Solution is here: scarce
Explanation: Based on the information given in the paragraph, population growth will make water more scarce, so that is the correct answer.

Now, solve this: Paragraph: At higher elevations, there is less air to press on a given area.
 Question: Allen is riding his bike on a path. The course ends up 1000 feet higher above sea level compared to the beginning. At which point is the air resistance lower? 
 Choices: A)at the beginning 
B)at the end
Solution:
at the end