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.

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

Question: If Jim is tuning his shortwave radio and he decreases the wavelength, what happens to the frequency? 
 Answer: increases
As wavelength increases, frequency decreases.

Question: Polly was out in the sun. She has dark skin. Her skin likely absorbs _____ vitamin D than a light-skinned person. 
 Answer: less

Pigments in the skin act like a filter that can prevent the skin from making vitamin D. As a result, people with darker skin need more time in the sun than people with lighter skin to make the same amount of vitamin D.