TASK DEFINITION: You are given a question or fill-in-the-blank question, two answer options (Option1 and Option2) and an Explanation. Your task is to find the correct answer (return the string of the correct option, not option1/2) for the given question from the given options and using explanation.
PROBLEM: Question: Mona is flying in a hot air balloon. As she floats lower in the air the air temperature decreases. What will happen to the air pressure? 
 Option1: increase 
 Option2: decrease 
 Explanation: Increasing air temperature decreases atmospheric pressure.

SOLUTION: increase

PROBLEM: Question: As Earth's climate becomes cooler it will develop _____ varieties of vegetation? 
 Option1: less 
 Option2: more 
 Explanation: The warmer a climate is, the more types of vegetation it will have and the greater the rate of biological weathering.

SOLUTION: less

PROBLEM: Question: When going out in the sun you wear a high SPF sunscreen because it protects 
 Option1: worse 
 Option2: better 
 Explanation: A sunscreen with a higher SPF protects the skin longer.

SOLUTION:
better