question archive Time series of atmospheric CO2 concentration show monthly fluctuations
Time series of atmospheric CO2 concentration show monthly fluctuations
Subject:GeographyPrice: Bought3
Time series of atmospheric CO2 concentration show monthly fluctuations. What causes these?Select one:
a. The seasonal cycle of respiration and photosynthesis by land plants
b. The eruption of volcanoes
c. The circulation of ocean current
d. The global atmospheric circulation
