Select the incorrect statement from the following

Options

A. 1)Big Bang theory attempts to explain us the origin of life
B. 2)Earth was supposed to be formed 3 billion years back
C. 3)Life appeared 500 million years after the formation of earth
D. 4)Formation of life on earth was developed through chemical evolution

Answer

To solve the question of selecting the incorrect statement from the given options, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Analyze the First Statement:**
- The first statement claims that the Big Bang Theory attempts to explain the origin of life.
- The Big Bang Theory explains the origin of the universe, not specifically the origin of life. Therefore, this statement is incorrect.

2. **Analyze the Second Statement:**
- The second statement states that Earth was formed 3 billion years ago.
- Scientific evidence indicates that Earth formed approximately 4.54 billion years ago, making this statement incorrect.

3. **Analyze the Third Statement:**
- The third statement claims that life appeared 500 million years after the formation of Earth.
- This statement is correct as life is believed to have originated around 3.5 to 4 billion years ago, which aligns with the timeline of Earth's formation.

4. **Analyze the Fourth Statement:**
- The fourth statement states that the formation of life on Earth was developed through chemical evolution.
- This statement is also correct, as chemical evolution refers to the processes that led to the formation of complex organic molecules and eventually life.

### Conclusion:
- After analyzing all statements, the second statement ("Earth was supposed to be formed 3 billion years back") is the incorrect statement.

### Final Answer:
The incorrect statement is: **Earth was supposed to be formed 3 billion years back.**

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