instruction:
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:
Question: Air pressure is higher in the 
 Answer: valleys.
answer:
Air pressure is less at higher elevations.


question:
Question: If a farmer learned better farming techniques, they could expect to produce _____ food. 
 Answer: more
answer:
Better farming techniques and machines increased the food supply and the distribution of food.


question:
Question: Fred was moving a desk across the room. He then pushed a chair and it was much easier. This is because the heavier desk had _____ friction with the floor. 
 Answer: more
answer:

Its harder to overcome friction between heavier objects and the floor than it is between lighter objects and the floor.