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: A hard rock will erode _____ than a soft rock. 
 Answer: slower
The water erodes the softer rock faster than the harder rock.

Question: Eric is looking at the shortest electromagnetic wave he has seen today. This wave has the _____ frequency of the day. 
 Answer: highest
Longer wavelength electromagnetic waves have lower frequencies, and shorter wavelength waves have higher frequencies.

Question: Christy is in lab measuring the pH values of some substances. The first substance she measures has a pH value of 9. The second substance has a pH value of 8. Compared to the first, the second substance can be said to be _____ basic. 
 Answer: less.

Bases have pH values above 7. The higher the pH value, the more strongly basic the substance.