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.

[EX Q]: Question: Would a big star be 
 Answer: hotter
[EX A]: Bigger stars produce more energy, so their surfaces are hotter.

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

[EX Q]: Question: When Alec adds a resistor to the parallel circuit, there is 
 Answer: less resistance.
[EX A]:
In a parallel circuit, the resistance decreases as more resistors are added in parallel.