Based on paleogeographic records, _____________.
a) the continents came together as Pangaea before North America was located at the equator
b) India separated from Antarctica before the continents came together as Pangaea
c) the North Atlantic opened before North America was located at the equator
d) India separated from Antarctica before North America was located at the equator
e) the North Atlantic opened before India separated from Antarctica
e) the North Atlantic opened before India separated from Antarctica
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According to a number of environmental and social scientists, four basic causes of environmental degradation are
A. poverty, population growth, unmanageable growth of resources, and government corruption. B. poverty, population decline, unsustainable resource use, and failure to include environmental costs in market prices. C. poverty, population growth, unsustainable resource use, and failure to include environmental costs in market prices. D. poverty, population growth, unsustainable resource use, and government corruption. E. poverty, population decline, unsustainable resource use, and including environmental costs in market prices.
As the world tries to protect cultural diversity and heritage, the United States is quickly becoming the most diverse country in the world
Indicate whether this statement is true or false.
The most productive region in an ocean is the ________
a. nearshore b. polar open ocean c. temperate open ocean d. tropical open ocean
On land, the carbon dioxide used today in photosynthesis to form carbon-containing organic molecules of plant tissues is mostly returned to the air because of
A) respiration in plants, animals, and organisms in the soil. B) plate tectonics. C) additional photosynthesis in the same plants. D) erosion, decay, and general weathering.