期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
What Are Our Possibilities and What Should We Do?
1
作者 Béla Ralovich 《Open Journal of Applied Sciences》 2022年第2期235-242,共8页
It is thought that the life of our Earth can be divided into two basic periods which are: the abiotic sterile physical life and the biological life. Both can be separated into smaller sections which are in the case of... It is thought that the life of our Earth can be divided into two basic periods which are: the abiotic sterile physical life and the biological life. Both can be separated into smaller sections which are in the case of physical life: glowing star state with atomic evolution, solidification of the surface, the appearance of C, O<sub>2</sub> and water and abiotic chemical evolution. During that period of time kinds of external and internal energy were effective only through physical-chemical way. In the case of biological life, the 1<sup>st</sup> section started with the appearance of the first living unit and ended with the beginning of photosynthesis. The 2<sup>nd</sup> one lasted from the start of photosynthesis till the appearance of the first two man-like creatures. The 3<sup>rd</sup> one began from that point of time and lasted till 1778 and the last one the 4<sup>th</sup> has existed since that date. Since the appearance of the first living unit biological accumulation of external energy and mainly C but not only, emission of CO<sub>2</sub> gas, metabolites, heat, transformation and loading of the earthly environment as well as natural mutation of organisms that is the biological evolution have flown. When photosynthesis began biological fixation of solar energy/photon and free atmospheric CO<sub>2</sub>, as well as production of free O<sub>2</sub>, have also started beside the former events and the biological evolution has continued. No unnatural event had happened in these two sections. The fate of the 3<sup>rd</sup> and the 4<sup>th</sup> sections— that is the anthropoid time—has been determined by the unnatural effects of man kind. The most important altering events are: the number of the inhabitants, the use of fire, agricultural production, domestication of animals, formation and maintenance of industry, trade, vehicle-park, denaturation of the surface of the Earth and contamination of soil, atmosphere and waters etc. Finally, ideas for the solution of the climate problems which are mainly the results of the 3<sup>rd</sup> and 4<sup>th</sup> sections will be discussed. 展开更多
关键词 Matter and Energy Life periods of Our Earth Effect of Biological Life anthropoid period Climate Change
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部