What type of metamorphic rock results from the recrystallization of quartz sandstone??

The process by which stars form helium atoms from hydrogen is ____

a. accretion b. condensation c. nuclear fusion d. density stratification e. compression

The word geography comes from the Greek, meaning ________

A) the study of rocks B) description of Earth C) planet measurement D) drawing of maps E) the study of human culture

It can be correctly stated that impulse is equal to

A. the change in momentum. B. the force multiplied by the distance the force acts. C. momentum. D. all of the above

Increasing levels of greenhouse gases have caused a

A) rise in ocean temperatures but a decrease in ocean pH. B) rise in ocean temperatures and an increase in ocean pH. C) decrease in ocean temperatures and a decrease in ocean pH. D) decrease in ocean temperatures but an increase in ocean pH.