Which "sphere" does a volcanologist most directly study?
a. biosphere
b. exosphere
c. geosphere
d. cryosphere
e. atmosphere
f. hydrosphere?

Evaporite rocks te more permeable than reef rocks true false

Chris lives in a city that experiences heavy rainfall with average annual precipitation of 882 millimeters. it is warm all year.mark lives in city with an average annual rainfall of 40 millimeters. it has hot summers and cool winters.chris's city is in a climate, while mark's city is in a climate.

Islam and the arabic language spread throughout north africa in the 600s primarily through a. african traders b. american colonists c. european explorers d. middle eastern armies select the best answer from the choices provided