In the system of stream orders, the smallest unit in the network is at the ______.
a - 4th order
b - a variable number
c - 2nd order
d - 1st order
e - 3rd order
d - 1st order
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What is the fastest-growing energy alternative to oil?
a. wave power b. current power c. tide power d. wind power e. solar power
The increasing global demand for energy is
A) increasing social stability in many countries, as people pull together to solve this challenge. B) forcing dramatic switches to nuclear and tidal power, which do not contribute to global climate change. C) renewing interests in preserving and protecting additional lands for conservation. D) increasing political attention to oil production and global climate change.
Which of the following statements is true of electromagnetic radiation?
A) All electromagnetic radiation has the same energy. B) As the wavelength of the radiation increases, the energy of the radiation decreases. C) As the wavelength of the radiation increases, the energy of the radiation increases. D) There is no specific relationship between wavelength and energy.
Volcanoes and earthquakes
A. have few areas of overlap in their distributions on Earth. B. have many areas of overlap in their distributions on Earth. C. have no areas of overlap in their distributions on Earth.