We know about the composition of the core of the earth from ____________
a) meteorites
b) the study of L waves
c) the study of Mars
d) deep-sea drilling
e) discontinuity studies
Answer: a) meteorites
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The _______________ climates radiate away much more energy than they receive from the sun during a year
Fill in the blank(s) with correct word
Which of the following will NOT bring about changes in relative location?
A) the discovery of new trade routes B) the opening of a new highway C) a new tariff agreement between two countries D) latitude and longitude
The structure of epidermal growth factor includes which of the following?
A) four helical segments B) only b-pleated sheet C) both a-helix and b-pleated sheet D) four cysteine residues which form two disulfide bridges
The majority of of FDI in the U.S. originates in the continent of ________
Fill in the blank(s) with correct word