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: An object with a rough surface will have _____ friction than an object with a smooth surface. 
 Answer: more
answer:
Friction is greater when objects have rougher surfaces or are heavier so they press together with greater force.


question:
Question: Will weighs 180 pounds while Nat weights 120 pounds, who would accelerate less after the same force is applied? 
 Answer: Will
answer:
The smaller its mass is, the greater its acceleration for a given amount of force.


question:
Question: Gerald laid down many rock layers. The layers on the top level were likely laid 
 Answer: last
answer:

Lower rock layers were laid down earlier, so they are assumed to contain older fossils.