Answer :
Option B. is correct, Mauna Loa measures the various gases in the air to look for any changes in the Earth's climate. Carbon monoxide, methane, nitrous oxide, and sulphur dioxide are some of the gases they measure.
The longest running record of atmospheric carbon dioxide concentrations, the main greenhouse gas causing global climate change, is the Mauna Loa Carbon Dioxide Record. The historical network of in situ measurements of surface air temperatures and ocean surface temperatures provides the instrumental temperature record with the temperature of the Earth's climate system. Finally, heat emanating from the Earth warms the ice sheet's base layers. However, climatologists can calibrate the data by comparing the thermometer temperatures with the oxygen isotope record, as these directly measured temperatures reflect an approximate average—a record of trends, not changeable, daily temperatures.
what is the main method for determining temperatures prior to the instrumental record at mauna loa? group of answer choices
A. examining air bubbles trapped in ancient ice
B. organisms in sea floor sediment
C. tree rings
D. historical documents
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