Understanding photosynthetic processes can increase food yield. In Ontario, a number of fresh vegetables are grown all year in greenhouses. This allows the grower to control the conditions of the plants. Identify at least 3 abiotic factors that can be controlled and the impact of each. Finally, describe how a grower could affect each factor

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -

What’s the student’s scientific question

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.