rocks interacting with wind and moving water over long periods of time causes weathering
bouldering is rock_climbing. if_rock is very_hot_can_melt. weathering is becoming. snow is crystalline_form_of_solid_water. rockiness is unevenness. mountains_often has snow_on phosphate_weathering is erosion. stand_underneath_when is raining_or_snowing. weathering is physical_event. snowing is precipitation_process.