Who or what manages the economy and determines production in a planned economy? a. a tribal leader b. the forces of supply and demand c. an elected committee of experts d. the government select the best answer from the choices provided. a b c d

The great scientist alfred wegener proposed that continents have moved, while other scientists such as t.c.chamberlin argued against wegener. wegener's ideas eventually won, and are now widely accepted, because: a) wegener's ideas were more beautiful, and so were favored by the intellectual elite.b) wegener's ideas did a better job of predicting the results of new observations and experiments.c) wegener's ideas appealed to dead white european males, whereas chamberlin's didn't.d) wegener's ideas appalled dead white european males, and we all know that in this politically correct era,dead white european males cannot get a fair shake.e) wegener won the nobel prize.

What is one early technological advance that shaped culture? a the use of fire b the discovery of arable land c family units. d migration

Identify the type of weathering seen in each picture ? chemical weathering mechanical weathering