In the figure below,why is there a seasonal variation in carbon dioxide (CO₂)concentrations?
A)CO₂ concentrations rise and fall as photosynthesis decreases and increases.
B)CO₂ concentrations rise and fall in conjunction with power plant emissions.
C)CO₂ concentrations rise and fall with variations in solar radiation.
D)The measurements were made in different places at different times of year.

Question

In the figure below,why is there a seasonal variation in carbon dioxide (CO₂)concentrations? 
A)CO₂ concentrations rise and fall as photosynthesis decreases and increases. 
B)CO₂ concentrations rise and fall in conjunction with power plant emissions. 
C)CO₂ concentrations rise and fall with variations in solar radiation. 
D)The measurements were made in different places at different times of year.

Quizplus · Accepted Answer

The Answer of In the figure below,why is there a seasonal variation in carbon dioxide (CO₂)concentrations? 
A)CO₂ concentrations rise and fall as photosynthesis decreases and increases. 
B)CO₂ concentrations rise and fall in conjunction with power plant emissions. 
C)CO₂ concentrations rise and fall with variations in solar radiation. 
D)The measurements were made in different places at different times of year.

In the Figure Below,why Is There a Seasonal Variation in Carbon