According to the U.N. Environment Programme how many species have gone extinct in the past century?
A. Almost 100
B. Nearly 1,700
C. Over 250
D. More than 800
E. 563
Answer: D
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The "peace" thesis on the origin of the Indo-European language family postulates that the first Indo-European speakers may have been the Kurgan people, who lived near the border of present-day Russia and Kazakhstan
Indicate whether the statement is true or false.
Briefly discuss the global distribution and consumption of energy
What will be an ideal response?
To maintain their bodies' water balance, marine fish ________.
A. produce small amounts of urine B. excrete salt through their gills C. excrete salt through their gills and drink water continually D. drink water continually E. excrete salt through their gills, drink water continually, and produce small amounts of urine
Describe coastal effects of removing sediments from a stream, as is done during mining
What will be an ideal response?