The correct answer is D. carbon dioxide.

### Explanation:
Early organisms, specifically cyanobacteria, are known for their ability to perform photosynthesis. They utilize carbon dioxide (CO₂) from the atmosphere and water (H₂O) to produce glucose (C₆H₁₂O₆) and oxygen (O₂). The photosynthetic process can be summarized by the following chemical equation:

$$
6 \text{CO}_2 + 6 \text{H}_2\text{O} \rightarrow \text{C}_6\text{H}_{12}\text{O}_6 + 6 \text{O}_2
$$

As a byproduct of photosynthesis, oxygen was released into the atmosphere, gradually increasing the levels of oxygen available. This significant development played a crucial role in shaping Earth's atmosphere and environments, allowing for more complex life forms to evolve. The rise of oxygen levels contributed to the Great Oxygenation Event, which transformed the planet’s ecosystems and paved the way for aerobic organisms.

### Final Answer
D. carbon dioxide

Question

The correct answer is D. carbon dioxide.

### Explanation:
Early organisms, specifically cyanobacteria, are known for their ability to perform photosynthesis. They utilize carbon dioxide (CO₂) from the atmosphere and water (H₂O) to produce glucose (C₆H₁₂O₆) and oxygen (O₂). The photosynthetic process can be summarized by the following chemical equation:

$$
6 \text{CO}_2 + 6 \text{H}_2\text{O} \rightarrow \text{C}_6\text{H}_{12}\text{O}_6 + 6 \text{O}_2
$$

As a byproduct of photosynthesis, oxygen was released into the atmosphere, gradually increasing the levels of oxygen available. This significant development played a crucial role in shaping Earth's atmosphere and environments, allowing for more complex life forms to evolve. The rise of oxygen levels contributed to the Great Oxygenation Event, which transformed the planet’s ecosystems and paved the way for aerobic organisms.

### Final Answer
D. carbon dioxide

Knowee AI · Accepted Answer

The correct answer is D. carbon dioxide.

### Explanation:
Early organisms, specifically cyanobacteria, are known for their ability to perform photosynthesis. They utilize carbon dioxide (CO₂) from the atmosphere and water (H₂O) to produce glucose (C₆H₁₂O₆) and oxygen (O₂). The photosynthetic process can be summarized by the following chemical equation:

$$
6 \text{CO}_2 + 6 \text{H}_2\text{O} \rightarrow \text{C}_6\text{H}_{12}\text{O}_6 + 6 \text{O}_2
$$

As a byproduct of photosynthesis, oxygen was released into the atmosphere, gradually increasing the levels of oxygen available. This significant development played a crucial role in shaping Earth's atmosphere and environments, allowing for more complex life forms to evolve. The rise of oxygen levels contributed to the Great Oxygenation Event, which transformed the planet’s ecosystems and paved the way for aerobic organisms.

### Final Answer
D. carbon dioxide

Early organisms turned _______ into oxygen, making life suitable for other organisms.A.siliconB.sulfurC.nitrogenD.carbon dioxide

Question

Early organisms turned _______ into oxygen, making life suitable for other organisms.

Solution

Explanation:

Final Answer

Similar Questions

Upgrade your grade with Knowee