The origins of life on earth has been because of chemical evolution . It can be justified by the statement.

Options

A. Meteorities falling on earth have been found to contain a number of laevorotatory amino acid as are found in living beings .
B. Torrential rains falling on earth for year brought `N_2 , CH_4, NH_3, CO_2, H_2 ` etc. into sea water where they reacted in presence of UV rays to form Sugars , Purines , Amino acids , Pyrimidines etc.
C. Every organism is special creation of god, hence there is no scope for evolution of one form of life from another
D. Frothind appeared in nutirent broth kept in open after some days of sterilization ,while no fronthing appeared in closed jar

Answer

To justify the statement that the origins of life on Earth have been due to chemical evolution, we can analyze the provided statements step by step:

### Step 1: Understanding Chemical Evolution
Chemical evolution refers to the process through which simple chemical compounds gradually evolved into more complex organic molecules, eventually leading to the formation of life. This concept is crucial in explaining how life could have originated from non-living matter.

### Step 2: Evaluating the Statements
1. **First Statement**: Meteorites falling on Earth contain amino acids found in living beings.
- This statement relates to the theory of panspermia, which suggests that life originated elsewhere in the universe and was brought to Earth by meteorites. This does not support the idea of chemical evolution occurring on Earth itself, so this statement does not justify chemical evolution.

2. **Second Statement**: Torrential rains brought nitrogen, methane, ammonia, carbon dioxide, and hydrogen into seawater, where they reacted under ultraviolet rays to form sugars, purines, and amino acids.
- This statement aligns with the theory of chemical evolution. It suggests that the conditions on early Earth allowed for the synthesis of organic compounds from inorganic precursors, which is a fundamental aspect of chemical evolution. This was notably demonstrated in the Miller-Urey experiment, which simulated early Earth conditions and produced amino acids.

3. **Third Statement**: Every organism is a special creation by God, denying the evolution of life forms.
- This statement represents the theory of special creation, which posits that life was created by a divine power. This contradicts the concept of chemical evolution, as it does not allow for natural processes to lead to the origin of life.

4. **Fourth Statement**: Nutrient growth appeared in an open jar after sterilization, while no growth occurred in a closed jar.
- This statement does not support chemical evolution either. It relates more to the debate on spontaneous generation rather than the chemical processes leading to the origin of life.

### Conclusion
Based on the evaluation of the statements, the second statement is the only one that justifies the concept of chemical evolution as the origin of life on Earth.

### Final Answer:
The origins of life on Earth can be justified by the second statement, which discusses the chemical reactions that occurred in the early environment leading to the formation of organic compounds.

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