Where might magma be generated in a newly formed collisional mountain belt?
What will be an ideal response?
Partial melting and the formation of magma can occur in the deepest and most deformed interior of the developing mountain belt.
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The mantle can be separated into two different portions-the lower mantle and the upper mantle. The lower mantle is
A. composed of putty that flows like molasses. B. predominantly liquid. C. rigid and cannot flow. D. completely solid due to extreme pressure that prevents rocks from melting.
Af and Am climates form a discontinuous belt astride the ________
A) Tropic of Cancer B) Arctic Circle C) equator D) Tropic of Capricorn E) Prime Meridian
So few of the world's species live in the ocean because the marine environment ________
A) doesn't have any sunlight B) is a poor habitat for life C) is a prime habitat for life D) is less stable than the terrestrial environment E) is more stable than the terrestrial environment
Which of the following statements about the environmental impact statement process is not true?
A. The EIS must discuss various alternatives to the proposed action. B. Comments should be solicited from all organizations or individuals likely to be affected by the proposed action. C. The EIS must describe all anticipated environmental consequences of the proposed action. D. The EIS must be prepared by independent professionals not affiliated with the federal agency proposing the action.