Title Evolution-3-min.pdf ✅

Evolution 2. FORMATION OF SOLAR SYSTEM
3. Evolution EARTH’S PRIMITIVE ATMOSPHERE y Earth’s primitive atmosphere was reducing in nature and it slowly changed from reducing to the oxidising. The condition from primitive earth became modified to support life. THEORIES FOR ORIGIN OF LIFE y There are many ideas and theories as to the origin of life on Earth. Some of them are – Theory of Special Creation y Life was created by a supernatural power or the divine. The main postulates of the theory are: ○ All forms of life were created at a time as such.
Evolution 4. ○ They were created in the same form as they are present today. They have not shown any change or variation since they were formed on this earth. ○ The bodies of the organisms were designed in such a way that they could meet all the needs of the organism forever. y Objection to the theory-The postulate that organisms were formed as they are today could not proved scientifically. Theory of Spontaneous Generation or Abiogenesis y It stated that life originated spontaneously from non living material. y Objection to the theory-It was proved inaccurate by Francesco Redi, Lazzaro Spallanzani and Louis Pasteur. Experiment by Francesco Redi y He placed meat in three jars: ○ One jar was covered with mesh,other with paper and third one was left open.