List the three types of plate boundaries and describe the relative motion along each
What will be an ideal response?
a. Convergent boundaries occur where plates are moving toward each other. These are called "destructive" margins because crust is destroyed during convergence.
b. Divergent boundaries occur where plates are moving away from each other. These are called "constructive" margins because new magma flows to fill the gap that forms between the plates and cools into new crust.
c. Transform boundaries are conservative because as the plates slide past each other, no crust is formed or destroyed.
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The Columbia River volcanic field is related to ____
a. Miocene lava flows b. Eocene subduction c. a recent mantle plume d. Oligocene extension e. Miocene subduction
In terms of matter and resources, the Earth is essentially a(n) ________ system; In terms of energy, the Earth is a(n) ________ system
A) closed; closed B) closed; open C) open; open D) open; closed
Diethyl ether can be made from ethanol. The reaction is: 2 C2H5OH(l) ? (C2H5)2O(l) + H2O(l) In one experiment 46.0 g of ethanol yielded 34.7 g of diethyl ether. What was the percent yield in this experiment?
A) 62.1% B) 80.4% C) 93.8% D) 97.0%
Which amino acid can be found in proteins in both its protonated and unprotonated forms?
A) alanine B) glycine C) histidine D) phenylalanine