Because the silt (dirt particles) in muddy water eventually settles out, the muddy water is a __suspension__ .
Answer:
The environmental conditions prevent the reaction to be accurate.
Explanation:
If the temperature is very hot then the oxygen production will be low even near to zero then the accurate light intensity can not be determined. The oxygen production level goes down when the temperature is too hot. The oxygen production is maximized when the temperature is around 25 degree Celsius. When the intensity of light is increased to 40% then the oxygen production will increase.
