Which arrows in this figure indicates ultraviolet energy, an external energy source? 
A. A
B. B
C. C
D. D
Answer: B
Environmental & Atmospheric Sciences
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Genes are located on molecules called ________
A) deoxyribonucleic acid B) nuclei C) proteins D) ribonucleic acids
Environmental & Atmospheric Sciences
The frequency of a wave is ________.
A. the time between successive waves B. the amount of displacement of the medium through which the wave is passing C. the number of waves passing a given point per unit time D. the energy of the wave
Environmental & Atmospheric Sciences
The ________ was the first organized territorial state in China
A) Qin dynasty B) Xia dynasty C) Shang dynasty D) Ming dynasty E) none of the above
Environmental & Atmospheric Sciences
A general term for a mass of perennial ice, resting on land or floating shelf-like in the sea adjacent to land is
A) the snowline. B) an iceberg. C) a glacier. D) moraine.
Environmental & Atmospheric Sciences