By studying ancient civilizations, such as the Greek and Roman empires and the Angkor civilization of Southeast Asia, historians have concluded that these civilizations declined partly because of ________

A) environmental degradation due to unsustainable use of resources
B) sustainable practices
C) fires
D) overabundance of resources
E) floods


A

Environmental & Atmospheric Sciences

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Dinosaurs went extinct approximately 65 million years ago

Indicate whether the statement is true or false

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An atoll typically has all of the following characteristics, EXCEPT

A) soil formed from coral. B) a high central peak. C) a barrier reef D) a lagoon in its center. E) a fringing coral reef.

Environmental & Atmospheric Sciences

Discuss how global circulation models (GCMs) use processes involved in the Earth's energy budget to understand impacts of global warming. Which specific processes are manipulated in these computer simulations?

What will be an ideal response?

Environmental & Atmospheric Sciences

Which of the following compounds has the largest formula weight?

A) KCl B) NaCl C) MgF2 D) BF3

Environmental & Atmospheric Sciences