What is a principle that can be used to determine the age of a landscape surface?
A) A landscape surface must be older than any rocks onto which it is carved.
B) A landscape surface is younger than any rock that is deposited on top of the surface.
C) The highest river terrace is probably the youngest in age.
D) A surface with a well-developed soil is probably older than a surface with no soil.
D) A surface with a well-developed soil is probably older than a surface with no soil.
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Two economically important metamorphic minerals are graphite and corundum, which can be used, respectively, for ____
A)abrasives and furnace linings B)furnace linings and abrasives C)furnace linings and dry lubricants D)dry lubricants and abrasives E)dry lubricants and talcum powder
When a windmill turns to generate electricity, the amount of kinetic energy input in the process
A) equals the amount of electrical energy produced. B) is less than the amount of electrical energy produced. C) is more than the amount of electrical energy produced. D) is unrelated to the amount of electrical energy produced.
The book argues that under moral separatism “we can’t follow nature.” Explain.
What will be an ideal response?
"Vampire" power is ________
A) when electric currents pass through silicone-rich materials B) when most of the energy produced is converted to kinetic energy that can be used later C) power that is stored in an electrical system for use later D) the hidden cost of energy E) energy used when appliance is turned off, but in "standby" mode