Name: G High
Why did the dinosaurs die out?
The current theory involves the impact of a huge asteroid from
space, which resulted in a large dust cloud going into the atmosphere when
this supposed asteroid struck the earth ages ago. The theory is that
because of the large, thick cloud of dust, the sunlight intensity
was cut considerably; this reduction in sunlight had the effect of
reduced vegetation which served as food for the dinosaurs, thereby
partially causing their demise. A secondary factor mentioned is
a cooling of the earth over a substantial % as a contributory factor.
Please let me know if this answers your question satisfactorily.
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Update: June 2012