Geography

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During the ________ era, the westward-moving North American plate began to override the Pacific ... Started by RRMR	1 Replies 40 Views	Feb 28, 2020 by Gabe
At the start of the Paleozoic, North America ________. Started by abc	1 Replies 27 Views	Feb 28, 2020 by Kedrick2014
During the late Paleozoic, the present-day North America, Europe, western Asia, Siberia, and perhaps ... Started by DyllonKazuo	1 Replies 94 Views	Feb 28, 2020 by fraziera112
The Appalachian Mountains formed as a result of ________. Started by 123654777	1 Replies 51 Views	Feb 28, 2020 by poopface
The slight eastward slope of the Great Plains was created during the Cenozoic by ________. Started by michelleunicorn	1 Replies 40 Views	Feb 28, 2020 by mjbamaung
According to your text, which type of body would have looked similar to the photograph below in its ... Started by Destiiny22	1 Replies 32 Views	Feb 28, 2020 by bulacsom
Sea level rise can be caused by ________. Started by nevelica	1 Replies 23 Views	Feb 28, 2020 by Expo
Continental crust is formed by ________. Started by dmcintosh	1 Replies 25 Views	Feb 28, 2020 by uniquea123
One significant difference between oceanic and continental crust in terms of the long term evolution ... Started by robinn137	1 Replies 21 Views	Feb 28, 2020 by tuwy
One important reason we do not know much about the geologic history of the Precambrian is that ________. Started by imowrer	1 Replies 94 Views	Feb 28, 2020 by cpetit11
Banded Iron Formations are interbedded iron oxides and chert that formed on the sea floor between ... Started by Brittanyd9008	1 Replies 57 Views	Feb 28, 2020 by nickk12214
In the early history of Earth, the solid surface of the earth weathered more rapidly than now ... Started by jerry coleman	1 Replies 101 Views	Feb 28, 2020 by cclemon1
The large size of insects and amphibians during the Pennsylvanian period has been suggested to be ... Started by khang	1 Replies 48 Views	Feb 28, 2020 by Ddddd
The Great Oxygen Event marks the time, approximately 2.5 billion years ago, when ________. Started by mpobi80	1 Replies 46 Views	Feb 28, 2020 by pocatato
The first bacteria probably used ________ instead of water as a source of hydrogen. Started by Mr. Wonderful	1 Replies 63 Views	Feb 28, 2020 by helenmarkerine
Earth's primitive atmosphere evolved from gases ________. Started by abarnes	1 Replies 39 Views	Feb 28, 2020 by jonathanballen97
The major source of free oxygen in the atmosphere is from ________. Started by rosent76	1 Replies 31 Views	Feb 28, 2020 by emsimon14
Which one of the following represents the greatest expanse of geological time? Started by Anajune7	1 Replies 20 Views	Feb 28, 2020 by sokh
Earth's core, mantle, and crust formed during the ________. Started by Metfan725	1 Replies 48 Views	Feb 28, 2020 by ynlevi
As they formed, due to their high temperatures and comparatively weak gravitational fields, which ... Started by mydiamond	1 Replies 88 Views	Feb 28, 2020 by cegalasso
The ________ means "the Sun in the making." Started by anshika	1 Replies 85 Views	Feb 28, 2020 by vseab
Planetesimals, asteroid-size objects, form during the early history of the solar nebula due to ________. Started by chads108	1 Replies 42 Views	Feb 28, 2020 by tennis14576
The heaviest element produced by nuclear fusion in a young star is ________. Started by cabate	1 Replies 72 Views	Feb 28, 2020 by cadimas
Earth formed approximately ________ years ago. Started by bobthebuilder	1 Replies 25 Views	Feb 28, 2020 by amit
The Goldilocks scenario suggests that ________. Started by Medesa	1 Replies 18 Views	Feb 28, 2020 by 31809pancho