Mantle plumes are primarily found at ____
A)divergent plate boundaries
B)convergent plate boundaries
C)transform plate boundaries
D)at the core-mantle boundary
E)Earth's surface
D
Environmental & Atmospheric Sciences
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Geochemical studies of rocks show that earth is approximately ________ years old
A) 500 million B) 6 thousand C) 30 billion D) 4.56 billion
Environmental & Atmospheric Sciences
Forests provide habitats for about ____ of U.S. wildlife species.
A. 50% B. 60% C. 70% D. 80% E. 90%
Environmental & Atmospheric Sciences
Briefly describe the three main components of waste management. Which method is preferred?
What will be an ideal response?
Environmental & Atmospheric Sciences
What is the evidence that the Younger Dryas occurred?
A) proxy temperature records from fossils B) ice core samples from Greenland C) temperature records from numerous monitoring stations D) both A and B
Environmental & Atmospheric Sciences