When a rock is broken into smaller pieces, its ____
A)volume increases but its surface area remains the same
B)surface area increases but its volume remains the same
C)rate of weathering dramatically decreases
D)surface area and volume increase
E)surface area decreases and volume increases
B
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The detachment and removal of fragmented rock material is known as ________
A) diastrophism B) erosion C) leaching D) regolith stripping E) sedimentation
What role does the process of mass extinction play in the evolution of life? What will be an ideal response?
In the television series "Cosmos" the astronomer Carl Sagan used to say, "We are all made of star stuff." What did he mean by that?
A) All of the chemical elements were formed during the big bang when the universe began, so we are like the stars. B) All of the chemical elements in our solar system were forged in an ancient star that went supernova. C) The earth has incorporated large amounts of chemical material from the solar wind, so our bodies carry this material. D) We all have to potential to be stars.
How would melting all of the world's glacial ice affect the flow of streams and rivers? What will be an ideal response?