The maximum height of the largest peaks in the Himalayan mountain range exceeds 8000 meters, while the highest mountain peaks of the rocky mountain are slightly above 4000 meters. what explains the difference between the maximum heights for the two mountain ranges? select all that apply. a) the rocky mountains are older and have been subjected to greater weathering erosion

b) the rocky mountains have formed more recently and have been subjected to less geologic deposition

c) the Himalayan mountains have formed long ago and have been subjected to more sedimentary deposition

d) the Himalayan mountains have more recently formed from geologic uplift as two continental plates collided

e) both mountain ranges were formed at the same time, but increased volcanic activity near the rocky mountains decreased their maximum elevation

Archeologists have discovered three sites showing conclusive evidence for the mastery of fire in tanzania, from a period slightly after the time that homo habilis was present in africa. these sites clearly were founded by homo erectus, the descendent species of homo habilis that migrated north, out of africa and into asia. homo erectus was known to have mastered fire, from ample evidence at sites in asia. there is no reason to attribute mastery of fire to homo ergaster, the descendent species of homo habilis that remained in africa.which of the following is an assumption on which the argument depends? (a) before their migration, homo erectus occupied african territory as far south as tanzania.(b) the strain of migration provided the selective pressure motivating homo erectus‘ mastery of fire.(c) homo ergaster would not have derived as much benefit from the mastery of fire as did homo erectus.(d) homo ergaster inherited all cultural knowledge from homo habilis, a species that did not have mastery of fire.(e) homo ergaster did not occupy regions as far south as tanzania until well after the time of these three sites.