Which condition is least important for wind to have a major effect on landscape?
A) parent rock type
B) frequent strong winds
C) sparse vegetation
D) abundant loose-surface particles
Answer: A
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Which of the following occurs when frost forms?
A. Frost forms through sublimation. B. The dew point is above 0ºC. C. Objects on the ground cool above the dew-point temperature. D. Water vapour changes into ice without first becoming a liquid.
In recent years, the duration of residency for unauthorized immigrants to the United States has been
A) decreasing. B) increasing. C) relatively constant. D) has averaged only 2 years. E) unknown since the immigrants are unauthorized.
The accompanying graph shows the number of Atlantic hurricanes since the 1880's. Based on when most global warming has occurred, one would conclude
A. all hurricanes have increased in frequency. B. no trends are apparent from this graph. C. short duration hurricanes have increased in frequency. D. moderate duration hurricanes have increased in frequency.
Together, these three natural elements make up 99% of the Earth's biomass
A) hydrogen (H), oxygen (O), and carbon (C) B) hydrogen (H), helium (He), and oxygen C) oxygen (O), argon (Ar), and helium (He) D) hydrogen (H), nitrogen (N), and helium (He) E) carbon (C), nitrogen, and helium (He)