Some scientists feel that dinosaurs became extinct when a cloud of dust and gas kept sunlight from penetrating the atmosphere for a long period of time. Based on what you now know about photosynthesis, is this a reasonable conclusion? Support your answer.

Yes, it is a reasonable conclusion.

Explanation:

The long lasting gas that kept sunlight from penetrating the atmosphere was the key factor that promote a disturbance on the chain food. Without sunlight, plants could not produce their own energy, therefore they could not resist to this environment condition and die. That way, the herbivores could not feed and die as well. Also the carnivore could not survive because their supply of food of herbivores are not alive anymore. This scenario would promote a mass extinction of every dinosaur.

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