Why does continental crust include more kinds of rock than oceanic crust?
A. Continental crust is formed in several ways.
B. Continental crust is less dense than oceanic crust.
C. Continental crust is younger than oceanic crust.

According to me

Both oceanic crust and continental crust are less dense than the mantle, but oceanic crust is denser than continental crust. This is partly why the continents are at a higher elevation than the ocean floor.

So answer is C

Hope this helps you

every el niño cycle is different. every year.

not too sure but maybe in the hot springs.