Question

using light - filtering cloths, scientists exposed sage plants to four different light intensities. half of the sage plants were exposed to light for 60 days, while the other half were exposed to light for 75 days. the rate of photosynthesis in each plant was then determined (figure 1). which of the following statements best describes the data? at 100% light intensity, the rate of photosynthesis was higher in plants that were treated for 60 days than in plants that were treated for 75 days.

Explanation:

The bar graph shows that for 100% light intensity, the bar for 60 days (solid) is taller than the bar for 75 days (open), indicating a higher photosynthesis rate in 60-day treated plants.

Answer:

A. At 100% light intensity, the rate of photosynthesis was higher in plants that were treated for 60 days than in plants that were treated for 75 days.