Answer:
measuring the isotopic composition of atmospheric co2 shows that the burning of fossil fuels has led to the co2 levels over the last 200 years.
Explanation:
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Spontaneous Reaction- <span>a reaction that favors the formation of products at the conditions under which the reaction is occurring
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Answer:
I say for her to test her suspicion by going to see an allergist to diagnose the allergy.
it is 6, all isotopes of carbon have 6 electrons and 6 protons which is why its atomic number is 6