D because they have the same materials but different structure which mean different functions
Answer: Rural areas can help keep us calm and collected, whereas urban areas can help keep us near people and keeps us from feeling lonely, depressed, and overall unhealthy.
Explanation: Human contact is good in doses, but having human contact all the time, or never, is not a good thing to have. Everyone needs some alone time, as well as time with other people.
I think the answer to this question is True.
It changes because it goes through phases of growth and changes size and it developed more.
Hope this helps.
I think it would be question hypothesize experiment collect data communicate then conclude