The most important source of error in the measurement of CO2 elimination is rebreathing, which corresponds to bout 24 ml of end expiratory gas per breath with the standard Y-pieces and tubing.This problem may be decreased by the use of non-return valves in the Y-pieces.
Answer:
First the chlorophyll (the chemical that makes plants leaves green and traps sunlight)...
Next the sunlight gives the plant energy to start the food-making process.
Then the roots suck nutrients up to the leaves and then the leaves mix carbon dioxide,...
Finally they throw out their waste (oxygen).
I think d not sure tho but hope it helps
The answer is D, wavelength
Hope I helped!
