For plants to grow they need building materials and an energy source. Photosynthesis supplies both of these in the form of ____ Plants can only photosynthesise when carbon dioxide, water, and ____ are available. The ____ needs to be within a certain ____ too, otherwise the plant will die. If one of these factors is in shorter supply than the others, then the rate of ____ will be held back. The factor slowing down the overall rate is called the ____ factor. For example, if the ____ is low then the rate of photosynthesis will be slow regardless of how much ____ is available. If the temperature is too low, then ____ the amount of light does not increase the rate of photosynthesis.

Photosynthesis

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