How does magma generation relate to Plate Tectonics?
What will be an ideal response?
Answer: Magma forms only where unique circumstances exist that permit melting to occur in the mantle or lower crust. Partial melting of the mantle happens where rising mantle remains hot but is exposed to decreasing pressure at divergent plate boundaries and hot spots. Partial melting of the mantle also occurs due to the addition of water from metamorphic reactions during plate subduction at convergent plate boundaries.
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Using the data in this table, determine the age of the dike.
A. 1,000 B. 40,000,000 C. 500 D. 1,000,000,000 E. 500,000,000
A flowing mixture of soil and water, usually moving down a channel, is called a(n)
A. fall B. slide C. mudflow D. earthflow
Energy transmitted by electromagnetic waves, including radio, television, light, and heat, is ________
A) angle of incidence B) advection C) radiation D) convection E) scattering
Which part of the hydrologic cycle likely has the shortest residence time?
A. water buried in rock B. glacial water C. polar ocean water D. lake water E. groundwater