Need help plz Giving you the Brainlist

It's timed! overpopulation can affect the natural environment • limiting land available for crops.• lowering the standard of living.• causing the destruction of forests.• worsening sanitation in cities.

Diego rivera was a famous artist from mexico. most of his paintings were murals. murals are paintings that are made directly on a wall. rivera thought that all people should be able to see beautiful art, not just people who could afford to go to museums. this is why he painted most of his murals on the walls of public buildings

What do you call a person who is mean in school?