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Classifying Organisms of the Past

When organisms become extinct, they are no longer alivesunlightfooddustSelect your answer on Earth. Millions of years ago, there was a(n) massdustcometvolcanoesSelect your answer extinction of dinosaurs. Some scientists believe the mass extinction of dinosaurs occurred after a giant asteroid or dustsunlightcometvolcanoesSelect your answer hit Earth. Dust blocked cometfoodsunlightmassSelect your answer, therefore plants couldn’t survive. Without sunlight, plants could not make dustfoodcometmassSelect your answer to survive. Without plants, dinosaurs that ate plants died. Meat-eating dinosaurs also died. Other scientists think dustvolcanoescometmassSelect your answer erupted. This would have created great extinctionmassdustsunlightSelect your answer clouds that blocked sunlight. Perhaps a combination of these events caused the dinosaurs’ foodextinctionsunlightdustSelect your answer.