John is riding a ski lift to the top of wildcat mountain. he removes his gloves and rapidly rubs his hands together to warm them up. what happens when john rubs his hands?

Well obviously his hands warm up. But this is because of the friction of his hands rubbing together.This energy is called Kinetic (not friction energy). All in all when you rub your hands together to warm them thermal and kinetic energy happens.

i really wish i could answer this question for you

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.