Several times in the past ________ years, many, or even most, of the species on Earth became extinct in a geologically short time.
A. 541 billion
B. 54.1 million
C. 541 thousand
D. 541 million
Answer: D
Environmental & Atmospheric Sciences
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The continental ___________ is the steeper region of a continental margin. Fill in the blank(s) with the appropriate word(s)
Environmental & Atmospheric Sciences
When the locations of the first appearances of a particular index mineral are connected on a map, the result is a line of equal metamorphic intensity called a(n) ____________________
Fill in the blank(s) with correct word
Environmental & Atmospheric Sciences
An example of a perforated state is
A) South Africa. B) Sahrawi Republic. C) Slovenia. D) Borneo.
Environmental & Atmospheric Sciences
Most of the wettest areas around the world are located in the ________
A) Tropics B) continental interiors C) midlatitude west coasts D) Southern Hemisphere E) polar mountains
Environmental & Atmospheric Sciences