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.
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Question: Question: Jim is comparing two rivers. One has a steep slope and one has a shallow slope. Will the shallow slope or the steep slope provide less water availability? 
 Option1: steep slope 
 Option2: shallow slope 
 Explanation: A gentle slope favours slower flow of surface water, reduces erosion, and increases availability of water to plants.

Answer: steep slope


Question: Question: If Milo is listening to the radio and he moves closer to the radio in the room, what happens to the sound waves entering his ear? 
 Option1: they spread out less 
 Option2: they spread out more 
 Explanation: The farther the sound waves travel away from the source, the more spread out their energy becomes.

Answer: they spread out less


Question: Question: Reid puts the same amount of gas in a 20ml container and a 10ml container. The container with less dense gas will be the _____ container. 
 Option1: 20ml 
 Option2: 10ml 
 Explanation: If we take a certain amount of gas from one container and place it into another, larger container, the gas expandsto fill the larger container. The same mass of gas is now in a larger volume, the gas now has a lower density.

Answer:
20ml