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: Allen is riding his bike on a path. The course ends up 1000 feet lower above sea level compared to the beginning. At which point is the air resistance lower? 
 Answer: at the beginning
[EX A]: At higher elevations, there is less air to press on a given area.

[EX Q]: Question: Dan falls from a single stair one day, then the next day falls down three stairs at once. After falling down one stair, compared to three, Dan will experience 
 Answer: less friction
[EX A]: Heavier objects press together with greater force, and this causes greater friction between them.

[EX Q]: Question: If Kevin slid a frying pan across the table and then slid an orange across the table, which object would slide the greater distance? 
 Answer: orange
[EX A]:
Heavier objects also have more friction because they press together with greater force.