7. XCO2 is the mixing ratio of a single point in the atmosphere, which is a measure of the amount of carbon dioxide in the entire atmosphere.*5 pointsTrueFalse

9. The XCO2 measurement from OCO-2/OCO-3 is directly comparable to an in situ measurement at a surface site or a single point in the atmosphere.*5 pointsTrueFalse

10. XCO2 measurements from OCO-2 and OCO-3 can be combined together in an analysis.*5 pointsTrueFalse

he amount of each reactant required to produce 750ml of carbon dioxide,when two volumes of carbon monoxide combine with one volume of oxygen to produce two volumes of carbon dioxide2CO + O2 ---> 2CO2

Since the Industrial Revolution, how much has the amount of CO2 in the atmosphere increased?a.One-halfb.One-fourthc.One-thirdd.Two-thirds

How has the concentration of CO2CO2 in the atmosphere changed since 1750? Decreased significantly Remained constant Increased significantly Fluctuated randomly Decreased initially and then sharply increased