TASK DEFINITION: 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.
PROBLEM: Question: Ian's town had fewer deaths this year since the food supply changed, which means that this year the food amounts were 
 Answer: increased

SOLUTION: More recently, the death rate has fallen because of the availability of more food and medical advances.

PROBLEM: Question: By removing a pound of salt from a bucket of fresh water, could you cause the density of the water to 
 Answer: decrease?

SOLUTION: Water density increases as salinity and pressure increase, or as temperature decreases.

PROBLEM: Question: Tina cools some oxygen gas. The oxygen particles will move 
 Answer: slower

SOLUTION:
If the gas is heated, the particles will move faster as they gain more energy.