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: When an item is lighter and is gliding across something it will have 
 Answer: less friction
Heavier objects press together with greater force, and this causes greater friction between them.

Question: If the Nile's flooding was prevented from covering the Egyptian bottomlands, it might ultimately result in _____ crops. 
 Answer: less
As more water covered the land, sand and silt were washed in and covered the dead vegetation, enabling more and more plants to grow.

Question: As Brian climbed Mount Everest, there was _____ air. 
 Answer: less

At higher elevations, there is less air to press on a given area.