Which of the following is not a paleoclimate proxy?
A. insect trapped in amber
B. tree rings
C. all are proxies
D. ice cores
Answer: A
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According to Wien's law
A) the wavelength of peak radiation is proportional to the amount of radiation. B) the Sun's energy intensity peaks in the visible portion of the electromagnetic spectrum. C) the radiation emitted from Earth must be 4 micrometers or longer. D) wavelength is proportional to the fourth power of the intensity of radiation.
What are the major differences between the political system that governs the United States and the system of government in Canada?
What will be an ideal response?
A wind profiler obtains wind information using which of the following instruments?
A. aerovane B. theodolite C. Doppler radar D. radiosonde
The Precambrian comprises what percent of geologic time?
a. 99% b. 88% c. 77% d. 66% e. 55%