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: 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
In general, the farther away from the Sun, the greater the distance from one planets orbit to the next.

Question: When it becomes less humid outside people are _____ to sweat. 
 Answer: less likely
As humidity increases, the water potential gradient across the inside and outside the leaf become more equal, and so the rate of transpiration decreases.

Question: If one does no aerobic exercises, their heart muscles will become 
 Answer: weaker

Aerobic exercise increases the size and strength of muscles in the heart and helps all your muscles develop greater endurance.