Rocks that were formerly part of Laurentia are now mostly in ____
a. North America
b. South America
c. Europe
d. Africa
e. Antarctica
a
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The dirt wall left after contour mining is called a spoil
Indicate whether the statement is true or false
Weather radar is capable of measuring precipitation for several hundred kilometers in all directions because [INSERT FIGURE 7-26. NO CAPTION]
A) precipitation rarely occurs in one direction only B) the curvature of the earth is minimal over these short distances C) the radar transmitter/receiver rotates D) there are usually a few dozen rain gauges within this distance
The number of large oil spills in the marine environment has decreased over the last 45 years.
Answer the following statement true (T) or false (F)
Atlantic ctenophores in the Sea of Azov and the kudzu vine overgrowing a forest in southern Alabama
A) have become invasive species that threaten native species in their new environments. B) have become naturalized and live in equilibrium with native species. C) demonstrate how species can rapidly spread to new environments on their own. D) have small populations that probably will not survive more than a year or two.