Chemistry, 27.07.2019 01:40 cupkakekawaii45
How do scientists measure changes in the levels of global atmospheric co2? a. they have directly measured co2 in the atmosphere since 1758. b. they measure co2 levels in water trapped deep in earth's crust. c. they take ice core samples that allow measurement of co2 over hundreds of thousands of years. d. a and b. e. a, b, and c?
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Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves
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At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver
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How many grams of phosphorus are contained in 5.09 moles of phosphorus?
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How do scientists measure changes in the levels of global atmospheric co2? a. they have directly me...
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