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: Question: Mary and Clare go to the beach. Mary uses a sunscreen with SPF 45. Clare uses a sunscreen that has an SPF of 20. Who skin will be protected less? 
 Answer: Clare

Answer: A sunscreen with a higher SPF protects the skin longer.


Question: Question: If no one used single use plastic the waste would 
 Answer: decrease

Answer: Using less nonrenewable resources means that they will last longer.


Question: Question: Will takes away half of a rock. The total surface area of the rock has now 
 Answer: decreased

Answer:
As rock breaks into smaller pieces, the surface area of the pieces increases.