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: Jan lives in a great country and she is rich. Compared to another person in a poorer country, Jan will use an amount of energy that is 
 Option1: greater 
 Option2: lesser 
 Explanation: People in the richer nations of the world use far more energy, especially energy from fossil fuels, than people in the poorer nations do.

SOLUTION: greater

PROBLEM: Question: If Mona is comparing a football and a baseball and she determines that the football is rougher then the baseball, which item has less friction? 
 Option1: football 
 Option2: baseball 
 Explanation: Friction is greater when objects have rougher surfaces or are heavier so they press together with greater force.

SOLUTION: baseball

PROBLEM: Question: Carl is studying climate change, and notes that less ultraviolet radiation is being trapped, which means the earth will be 
 Option1: cooler 
 Option2: warmer 
 Explanation: If there are more greenhouse gases in the atmosphere, more ultraviolet radiation will be trapped and the Earth will heat up.

SOLUTION:
cooler