Volunteering is a very nice thing to do
With the A. migration of people from fertile areas, knowledge of agriculture spread by diffusion.
When people migrate from a place, they move into other areas. When something diffuses, it spreads around.
Since the kitchen is the place where you cook and prepare meals, then an office is definitely the place where you work. You learn in the study room, you play outside, you sing again in a room, but not in an office.
Answer:
Censorship
Explanation: Somethings I really just don't have one for..