PLEASE HELP (this is science btw)

What is a physical change? Give 2 examples.
What is a chemical change? Give 2 examples.

How does cultural diffusion affect civilization

Which of the following best illustrates the process of the supreme court’s review of a case?

This cartoon appeared in 1916. the topic of the cartoon isa)the reason for the start of world war i.b)the success of us submarines in world war i.c)the military alliance between germany and mexico.d)the attitude in the us towards submarine warfare in world