C. The orgin and development of the biosphere 3000-4000 million years ago earth: hot, pure 2000-3 000 million years ago the surface: clay, sand and limestone Hydrosphere: H2S, NaCl, KCl etc in low concentration Atmosphere: CO,. N, with little hs
C. The orgin and development of the biosphere • 3 000 – 4 000 million years ago earth: hot, pure • 2 000 – 3 000 million years ago the surface: clay, sand and limestone; Hydrosphere: H2S, NaCl, KCl etc in low concentration Atmosphere : CO2 , N2 with little H2S
In time Atmosphere: N2, CO2; Hydrosphere: NaCl the appearance of organically formed FeO(oh and CaCO3 and peptides, pyrimidines and purines were produced(Bernal, 1959) The "pure earth was being organically polluted and eventually eobionts, became organelles, organelles oranisms and then protozoa
• In time…… Atmosphere: N2 , CO2 ; Hydrosphere: NaCl the appearance of organically formed FeO(OH) and CaCO3 and peptides, pyrimidines and purines were produced (Bernal, 1959) —— The “pure”earth was being organically polluted and eventually eobionts, became organelles, organelles oranisms and then protozoa
In a special sense this is pollution in the sharp of the introduction of hitherto unknown substances especially finely devided solids and a range of primitive organic molecules pollution had culminated in the appearance of primeval forms of life
• In a special sense, this is pollution in the sharp of the introduction of hitherto unknown substances, especially finely devided solids and a range of primitive organic molecules; • pollution had culminated in the appearance of primeval forms of life