The ________ period was a time of major extinctions, including 75 percent of amphibian families.
a. Jurassic
b. Pennsylvanian
c. Permian
d. Mississippian
c. Permian
Environmental & Atmospheric Sciences
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Biosphere II would have been a successful and valuable experiment if the enclosure had not been invaded by an ant species
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
Which of the following happened to form the features in this region?
A. continental rifting B. seafloor spreading C. formation of a continental hot spot D. volcanism that produced new land E. All of these choices are correct.
Environmental & Atmospheric Sciences
Explain the difficulties accompanying landfill siting and outsourcing. How can these processes be handled responsibly?
What will be an ideal response?
Environmental & Atmospheric Sciences
Name three of the top 10 rivers by discharge and where they are located
What will be an ideal response?
Environmental & Atmospheric Sciences