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: Since Kim has more melanin than Jennifer, when they lay out in the sun Jennifer's skin is _____ than Kim's. 
 Answer: lighter
[EX A]: However, the melanocytes of people with darker skin produce more melanin.

[EX Q]: Question: NASA has sent an unmanned probe to survey a distant solar system with four planets. Planet Zorb is farthest from the sun of this solar system, Planet Krakatoa is second farthest, Planet Beanbag is third, and Krypton is the closest. The probe visits the planets in order, first Zorb, then Krakatoa, then Beanbag and finally Krypton. Did the probe have to fly farther in its trip from 
 Answer: Zorb to Krakatoa or
[EX A]: In general, the farther away from the Sun, the greater the distance from one planets orbit to the next.

[EX Q]: Question: A non-smoker's body works _____ just to get needed air. 
 Answer: less
[EX A]:
When a person smokes there are chemicals released by the tobacco that enter the lungs. Because the lungs have to work harder to remove the chemicals, the body has to work harder to get the air needed to survive.