What forces do you know about and
what do they do?

There are 4 fundamental forces

1.Gravitational force :the force of mutual attraction between any two objects by virtue of their masses .

2.electromagnetic force :the force between charged particles.

3. strong nuclear force :force which binds protons and neutrons in the nucleus.

4..weak nuclear force: This forces only appear in certain nuclear processes such as the beta decay of nucleus ..

plzz follow me if it's helpful

i guess it’s a and b

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide