More than 70% of U.S. exports are
A) agricultural products.
B) mining products.
C) manufactured items.
D) transportation.
E) commercial services.
C
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It has been estimated that capturing the wind's energy at the world's best sites would only produce about 50% of the electricity currently being used worldwide
Indicate whether the statement is true or false
Why do markets often fail at environmental protection?
A. They are focused on making profits for their investors. B. They should bear no responsibility for protecting the environment. C. There is no profit to be made in protecting the environment. D. There is little agreement as to what environmental protection involves. E. They do not assign a monetary value to the benefits provided by natural capital.
What is the approximate strength of a hydrogen bond in alcohols?
A) less than 1 kcal/mol B) 2 to 5 kcal/mol C) 10-20 kcal/mol D) more than 20 kcal/mol
What force must be overcome in order for mass wasting to occur in most cases?
A. Friction B. Saturation C. Slope