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In 1953 S.L. Miller created primitive ea...

In 1953 S.L. Miller created primitive earth conditions in the labortory and gave experimental evidence for origin of first form of life from pre-existing non-living. Organic molecuels. The primitve earth condition created include.

A

low temperature, volcanic storms, atmosphere rich in oxygen

B

low temperature, volcanic storms, reducing atmosphere

C

high temeprature, volcanic storms, non-reducing atmosphere

D

high temperature, volcanic storms, reducing atmosphere containing `CH_(4),NH_(3)` etc.

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**Step-by-Step Solution:** 1. **Understanding the Experiment**: In 1953, Stanley Miller conducted an experiment to simulate the conditions of primitive Earth in a laboratory setting. His goal was to provide evidence for the origin of life from non-living organic molecules. 2. **Creating Primitive Earth Conditions**: Miller created conditions that he believed were similar to those on early Earth. These included: - A reducing atmosphere, which is rich in gases like methane (CH4), ammonia (NH3), hydrogen (H2), and water vapor (H2O). - High temperatures, which were thought to be caused by volcanic activity. 3. **Apparatus Setup**: Miller used a closed apparatus that included: - A boiling flask to heat water, simulating the oceans of early Earth. - Electrodes to simulate lightning, which would provide energy to drive chemical reactions. - A cooling system to condense the vapor back into liquid, creating a cycle similar to that of the water cycle on Earth. 4. **Chemical Reactions**: The combination of heat, electrical sparks, and the reducing atmosphere led to the synthesis of amino acids, which are the building blocks of proteins and essential for life. 5. **Conclusion**: The experiment demonstrated that under the right conditions, it is possible to form organic molecules from inorganic precursors, supporting the hypothesis of abiogenesis (the origin of life from non-living matter). **Final Answer**: The primitive Earth conditions created by S.L. Miller included high temperature, volcanic storms, and a reducing atmosphere containing methane (CH4), ammonia (NH3), and other gases. ---
**Step-by-Step Solution:** 1. **Understanding the Experiment**: In 1953, Stanley Miller conducted an experiment to simulate the conditions of primitive Earth in a laboratory setting. His goal was to provide evidence for the origin of life from non-living organic molecules. 2. **Creating Primitive Earth Conditions**: Miller created conditions that he believed were similar to those on early Earth. These included: - A reducing atmosphere, which is rich in gases like methane (CH4), ammonia (NH3), hydrogen (H2), and water vapor (H2O). - High temperatures, which were thought to be caused by volcanic activity. ...
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In 1953 S.L. Miller created primitive earth conditions in the laboratory and gave experimental evidence for origin of first form of life from pre-existing non-living. Organic molecules. The primitive earth condition created include.

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