Increasing global temperatures leads to increasing global emissions of longwave radiation. This is an example of a
A) negative feedback
B) positive feedback
C) neutral feedback
D) adiabatic feedback
Answer: A
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Which of the features on this aerial photograph represents the former position of a meander?
A) A
B) B
C) C
D) D
E) Both C and D
Of the following, ________ can change global species diversity
A) emigration and extinction B) immigration and extirpation C) speciation and immigration D) extirpation and extinction E) speciation and extinction
The Coriolis effect is the apparent deflection in the path of a moving object due to
A. the rotation of the earth. B. the revolution of the earth. C. the pressure gradient force which increases with latitude. D. the pressure gradient force which decreases with latitude.
A freely falling boulder has a speed of 40 m/s. One second later, its speed is
A. 10 m/s. B. 50 m/s. C. 30 m/s. D. 40 m/s.