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Which one of the following gases is not an important component of soil?
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A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?
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Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.
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What is the percentage of hydrogen in nitrogen trihydride
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