Which of the following is a line of evidence that has helped inform our understanding of the climate of the Pleistocene? study of oxygen isotopes preserved in the shells of marine invertebrates evolving use of stone tools and weapons among early humans evolving use of language among early humans amount of carbon dioxide in the atmosphere

Which is the most direct effect of the flooding and drought cycles in Africa? A. Political unrest B. Export economies C. Tsunamis D. Herbivorous migration

12. Which of the following is the EON In which we now live? Archean Devonian Phanerozole

1. Identify the layer of the atmosphere that protects Earth from meteors. troposphere stratosphere thermosphere mesosphere

In which type of geological formation would you most likely find petroleum? sedimentary basins igneous rock formations metamorphic rock layers granite outcrops

The __ is an example of an active, continent -continent collision. Arabian Peninsula slamming into North Africa under the Red Sea westward movement of the South American plate over the Nazca plate northern movement of Baja California and a sliver of western California toward the Hawaiian Islands northward movement of India into Eurasia

Molten rock underneath the earth's surface is called A Magma B Lava C Obsidian D $Till$

In the process of Plate tectonics Were to stop acting, Which of the following would be the last to cease? A Earthquakes B Volcanic eruptions C Erosion D tsunamis

Which data would work better in a graph rather than a chart or map? A. The number of democratic countries vs . communist countries at the start of the Cold War B. The ratio of settled land to unexplored land in the Fertile Crescent C. The number of children, adults, and seniors in Paris in 1650 D. The growth of telephone ownership in the UK from 1876 to 1976

Which of these statements best describes Syria's population? Syria has one of the lowest population densities in the world. Syria has one of the highest population densities in the world. hie population of Syria declined from 1990 to 2002. The population is growing rapidly at a rate of ten percent a year.

Which occurs when a location has one high and one low tide each day? an isodiurnal tidal pattern a cyclical tidal pattern a semidiurnal tidal pattern none of these is correct an equivalent tidal pattern