This is the Keeling Curve, the record of atmospheric CO2 as measured at Mauna Loa, Hawaii, over the last several decades. What do the small oscillations in this curve reflect? November 18, 2021 Carbon dioxide concentration at Mauna Loa Observatory 420 Full Record ending November 18, 2021 410 400 390 380 370 360 350 340 8 330 320 310 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010 2015 2020 co, Concentration (ppm)

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Physical and Chemical features

The physical property of a compound could be determined without modifying the originality of the compound. Examples of physical properties are density, hardness, color, boiling, and melting point. The chemical property expresses the ability of a compound to undergo a particular chemical change.