In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

Input: Consider Input: Question: If Mona shines a light through both wool and cotton and determines that cotton is more dense then wool, which material will the light move faster through? 
 Answer: wool

Output: The more dense the medium, the slower the light moves.


Input: Consider Input: Question: Karly is studying two rivers and how they are affecting the rock around them. If the 2nd river she looks at is twice as big as the first river she is studying, then Karly would expect to see _____ erosion caused by the 2nd river. 
 Answer: more

Output: The bigger the waves are and the more sediment they carry, the more erosion they cause.


Input: Consider Input: Question: Two small planets are near each other, and two large planets are near each other. The smaller planets, compared to the larger planets will have a gravitational pull that is 
 Answer: weaker


Output: The greater the mass of the objects, the stronger the gravitational pull between them.