par Nada Amin Il y a 17 années
287
How did it all start?
Various theories and scientific concepts have been developed to explain the origins of the universe and life on Earth. Cosmological theories, such as the Doppler Effect and Hubbler'
par Nada Amin Il y a 17 années
287
Plus de détails
variaton within species
Survival of the fittest
Conclusion: Objects are moving away from Earth
Ingredients of life on earth
C,N,O,H
even some bacterias require PH 0.5
Existence of water on earth & hypotheses on its reason
erruptions
melting of volcanos
