The longest wavelengths on the electromagnetic spectrum are:
A) infrared. B) visible light. C) gamma. D) radio. E) ultraviolet.
D
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What are the ways in which national incomes are measured?
What will be an ideal response?
Vascular or non: cell walls with lignin
What will be an ideal response?
During the Pleistocene of North America, there were at least ____________________ glacial stages
These stages, in order from oldest to youngest, are the ____________________, ____________________, ____________________, and ____________________. What will be an ideal response?
Atmospheric nitrogen is converted to nitrogen oxides
A) when fuels are burned at high combustion temperatures. B) if the sun is shining brightly and there is a temperature inversion. C) on cloudy days when carbon and soot levels are unusually high. D) if radon gas is present when gasoline is burned in automobiles.