One difficulty with the process of using hydrogen as a power source is that it ________
A) is less efficient than fossil fuels
B) has highly volatile and explosive components
C) requires a fuel that is a nonrenewable resource
D) first needs to be converted to helium through nuclear fission
E) requires a substantial energy investment to produce the fuel
Answer: E
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Which of the following locations has the highest July specific humidity values as a result of the monsoon?
A) A
B) B
C) C
D) D
If you want to have a good snowball fight, you should wait for a day when it is snowing and:
A) the temperature is below -5°C (23°F). B) the snow is very powdery. C) the dew point is below -10°C. D) the temperature is above -5°C (23°F).
Wave refraction ____
a. is the suspension of sediment by a breaking wave b. occurs because of rip currents c. occurs in the offshore zone d. causes erosion of headlands and deposition in embayments