While on an archaeological dig in Europe, you find a stone tool that is rounded on one side and has had flakes removed from the other side, giving it the appearance of a tortoise shell. This is likely to be a(n):.a) Clovis point. b) completed tool that is similar to those you have seen from the Solutrean toolkit. c) Oldowan core typical of the Lower Paleolithic. d) example of the Levallois technique of the Middle Paleolithic.

Achild’s often are influenced by the belief systems of his or her parents. a. ideologies b. bilingualism c. territoriality d. cultural diffusion

Select the correct text in the passage. the moving continents affect all subsystems on earth. which sentence identifies a potentially negative consequence of shifting continents? the supercontinent pangaea began to break up about 175 million years ago. [during this process, more coastline was exposed as the landmasses separated]. [the rearrangement and displacement of these huge landmasses resulted in the diversity of plants and animals we see on earth today]. [the movement of the plates sometimes leads to earthquakes and tsunamis]. however, over the long course of earth's history, their effects are usually minimal. in oceans, the plate movements usually lead to seafloor spreading. [seafloor spreading often results in the formation of underwater ranges of mountains].

Which of the following is not a challenge to instituting sound global environmental policies? a. most changes are inexpensive and easy to implement. b. elected leaders who support unpopular environmental issues often are not re-elected. c. economic considerations outweigh environmental ones in many societies. d. there is no way to enforce international environmental agreements.