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: A ball that is on the ground will have _____ potential energy than a ball on the top of the empire state building about to be dropped off . 
 Option1: more 
 Option2: less 
 Explanation: So the higher an object is above a surface, the more potential energy it has.

SOLUTION: less

PROBLEM: Question: Tina is drinking water. Tina blows slowly on the surface of the water. The faster she blows, the _____ the waves are. 
 Option1: smaller 
 Option2: bigger 
 Explanation: The faster, longer, and farther the wind blows, the bigger the waves are.

SOLUTION: smaller

PROBLEM: Question: A fossil in the highest layer of rock would be _____ than one lower down. 
 Option1: younger 
 Option2: older 
 Explanation: Fossils found at the lowest layer of rock would be the oldest, as these would have been buried for the longest time, whereas fossils found closer to the surface would be buried more recently and therefore be younger.

SOLUTION:
younger