Which of these processes most likely causes the formation of steam which comes out of the geyser? Oreaction of groundwater with limestone in the rocks
O overheating of alir particles near the mouth of the geyser
O boiling of groundwater because of heat under the Earth's surface
O drop in pressure underground converting hot groundwater to steam

Why are carbon dioxide concentrations expected to increase? a carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase b. carbon dioxide concentrations are expected to increase, because of an increase in agriculture. c. carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. d. all of the above select the best answer from the choices provided mark this and return save and exit next submit submit