Cause of death of dinosaurs
How, exactly, did dinosaurs die?
Our current thinking is that dinosaurs passed away due to the following
sequence of events:
A large asteroid from space crashing to the earth, producing a large amount of
debris in the atmosphere.
The high amount of debris created dirty "clouds" which blocked out the
sunlight and reduced the amount of sunlight reaching the earth.
Because of the reduced sunlight, plants began to die off. These plants
included those which served as the dinosaurs food. The dinosaurs also began
to die off due to the lack of food.
Over time scientists have had several theories regarding the disappearance of
dinosaurs. As I mentioned this is the current idea.
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Update: June 2012