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: Slowing plate tectonics indicates convection is 
 Answer: decreasing

SOLUTION: Convection on early Earth was faster and so plate tectonics was faster.

PROBLEM: Question: If Jim begins emitting more greenhouse gases into the air it means that the air will become 
 Answer: warmer

SOLUTION: More greenhouse gases trap more heat and warm the atmosphere.

PROBLEM: Question: If Jim lowers the temperature of water in his bathtub, what happens to the density of the water? 
 Answer: increases

SOLUTION:
Water becomes more dense when it is colder and when it has more salt.