The carbon dioxide cycle is important to Earth because it
A. prevents the gradual buildup of oxygen, which would eventually lead to a combustible atmosphere.
B. helps sustain the planet's plant base.
C. has been recognized by the Nobel Prize award committee.
D. and the oceans are critical in moderating and regulating the Earth's temperatures.
Answer: D
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Geography is best described as a discipline
A) concerned with memorizing the locations of places, especially the largest/longest phenomena. B) in which space, how the earth's surface is used, and how human activities differ from place to place is studied. C) that uses maps, performs cartographic analysis, and publishes atlases. D) that is a branch of Geology. E) that incorporates the latest technologies available.
When a disease infects and/or kills people all over the world, the event is referred as a ________.
A. pandemic B. mutation C. natural hazard D. capacity correction E. virus
An episode of mountain building is known as a(n) ____________________. Fill in the blank(s) with the appropriate word(s)
A(n) ________ is sandstone in which more than 15% of the rock's volume consists of fine-grained matrix.
A. quartz sandstone B. arkose C. graywacke D. quartzite E. oolitic limestone