In photosynthesis water and carbon dioxide become

Oxygen and carbohydrates, in the presence of light.

Explanation:

Plants take in water and carbon dioxide and use it to create their food with help from the sun, hence the "photo" which means "light" and "synthesis" which means "to put together"

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms

the sun's light combined with the visible wavelenghts form what is called ultraviolet radiation, which are the long waves at the end of a visible light sprectrum.

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