Both oceanic and continental crust.
I hope this helps!
Reflecting telescopes are popular because they are more durable than a refracting telescopes.
There is a difference between these two types of telescopes, reflecting telescopes worked by reflecting light, they are also known as reflector and refracting telescopes worked by refracting light and they are also known as reflactor.
Reflecting telescopes also provides a good focus.
Your center or gravity helps your balance because either it will help younot fall or it wont some people are just clusmy
