Diana Katz Obeso
1º B
07/10/10
Miss Karen Olryd
Geography

Atmosphere

The Rise of the Dinosaurs.
A long time ago in the age of the dinosaurs animals and plants were very big.
Something that physics can’t explain is how did the heart of such a big animal like a dinosaur could pump blood to its brain. Also a mistery is how dinosaurs could maintain stood up with their size. Well the answer is the high levels of CO2 in th air wich made a denser atmosphere and helped the dinosaurs to maintain stand up, also this dense atmosphere helped some dinosaurs to fly. The Jurassic was a period with very high levels of CO2 but in that period the gratest dinosaurs didn’t leave .
The result of this dense atmosphere was high temperatures.
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