Longwaves in the middle and upper troposphere usually have lengths on the order of
a. a few kilometers.
b. tens of kilometers.
c. hundreds of kilometers.
d. thousands of kilometers.
e. millions of kilometers.
ANSWER: d
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the two most important sources of heat for metamorphism are:a
intrusive magma bodies and deep burial. b. intrusive magma bodies and heat from the core. c. deep burial and volcanism. d. radioactive decay and volcanism. e. radioactive decay and deep burial
The processes that reverse the polarity of the magnetic field are likely related to changes in the flow of the iron-rich liquid in the outer core.
Answer the following statement true (T) or false (F)
To make an ice cube, you fill a tray with liquid water which then freezes, making a coherent solid (a rock). Which rock type would the ice cube be?
a. Metamorphic b. Igneous – the water is akin to magma, and cooling magma creates an igneous rock c. Sedimentary
The refractive index of seawater ____
a. is greater than freshwater b. is less than freshwater c. is equal to freshwater d. decreases with increasing salinity e. occurs at a 90° angle