By the end of the Permian, small mammal-like reptiles called the ____________________ evolved
from the pelycosaur. Fill in the blank(s) with the appropriate word(s).
therapsids
Environmental & Atmospheric Sciences
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It is impossible for a country to have a negative rate of natural increase
Indicate whether this statement is true or false.
Environmental & Atmospheric Sciences
Renewable energy includes all of the following except ________
A) the sun B) the wind C) rain D) natural gas E) geothermal heat
Environmental & Atmospheric Sciences
During its orbit the earth's maximum distance from the sun is approximately 152 million kilometers. Which of the following is the correct way to express this number in scientific notation?
A) 1.52 x 10^5 B) 1.52 x 10^6 C) 1.52 x 10^7 D) 1.52 x 10^8
Environmental & Atmospheric Sciences
Rare, but complete preservation of fossils occurs in ________
A) amber B) limestone C) shale D) mudstone
Environmental & Atmospheric Sciences