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: When we have one bag of dog food and we add two new dogs we will run out of food 
 Answer: faster
As the population increases, the food supply, or the supply of another necessary resource, may decrease.

Question: If Jim lowers the temperature of water in his bathtub, what happens to the density of the water? 
 Answer: increases
Water becomes more dense when it is colder and when it has more salt.

Question: As the sea spreads and rises up it causes sea levels to do what? 
 Answer: rise

Sea level rises if an increase in seafloor spreading rate buoys up the ocean crust, causing the ocean basin to become smaller.