In terms of dollar value, what is the largest category of world exports today?
A) manufactured goods
B) agricultural products
C) minerals and fuels
D) services
E) transportation
A
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At 10°C, which is more concentrated-a saturated solution of sodium nitrate, NaNO3, or a saturated solution of sodium chloride? (See figure shown above)
A. At 10°C, a saturated solution of sodium nitrate, NaNO3, is more concentrated than a saturated solution of sodium chloride, NaCl. B. At 25°C, a saturated solution of sodium nitrate, NaNO3, is more concentrated than a saturated solution of sodium chloride, NaCl. C. At 10°C, a saturated solution of sodium chloride, NaCl, is more concentrated than a saturated solution of sodium nitrate, NaNO3 D. At 20°C, a saturated solution of sodium nitrate, NaNO3, is more concentrated than a saturated solution of sodium chloride, NaCl.
Right before a bill can be debated on the floor in the House and Senate, it must have been
A. To the subcommittee and marked up B. To the full committee and marked up C. Introduced in the House and Senate D. Confirmed by the House and Senate E. To field hearings with public testimony
Hydrogen bonding plays an important role in which of the following?
A) the boiling point of water B) the expansion of water upon freezing C) both a and b D) neither a nor b
Should we care whether a species goes extinct?
a. Yes, because all life is important and valuable. b. Yes, because we are causing this wave of extinction, so we should fix it. c. We should not, because it’s natural. d. I don’t care; it really does not affect me.