Lux meters, sometimes called light meters, measure the intensity of illumination as distinguished by the human eye. This value does not correlate to an objective value of energy radiated or reflected, ...

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Light provides the energy needed for photosynthesis. Increasing the light intensity increases the rate of photosynthesis, provided plenty of carbon dioxide and water are available. The maximum ...

Without enough light, a plant cannot photosynthesise very quickly - even if there is plenty of water and carbon dioxide.

Light-intensity walking reduced postprandial glucose and diastolic blood pressure in young adults with obesity.