Science a GoGo's Home Page Forums General Discussion General Science Discussion Forum What Killed the Dinosaurs?

the asteroid caused a nuclear winter type of blockage of
the suns light.
the lack of sunlight caused the plants to die off.
the lack of plants caused the plant eaters to die off and
the lack of plants caused a lack of oxygen because plants
cause oxygen and the lack of oxygen caused the extinction.

large animals require large amounts of oxygen for breathing.

the bottom line is that even if there were a large diversity
of plant eaters there would have still been a extinction from
the way I see it.

because all of the dinosaurs required oxygen to breath
and without plants there was very little oxygen and
the earths air would have been mostly co2.