The gas involved in the photosynthesis process is

Options

A. ozone
B. oxygen
C. hydrogen
D. carbon dioxide

Answer

**Step-by-Step Solution:**

1. **Understanding Photosynthesis**: Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose (food) using carbon dioxide and water.

2. **Identifying the Reactants**: The main reactants involved in the photosynthesis process are carbon dioxide (CO2) and water (H2O).

3. **Role of Sunlight and Chlorophyll**: Photosynthesis occurs in the presence of sunlight and chlorophyll, which is the green pigment in plants that captures light energy.

4. **Photosynthesis Equation**: The general equation for photosynthesis can be written as:
\[ 6CO_2 + 6H_2O + \text{light energy} \rightarrow C_6H_{12}O_6 + 6O_2 \]
This shows that carbon dioxide and water are converted into glucose and oxygen.

5. **Identifying the Gas Released**: During photosynthesis, oxygen (O2) is released as a byproduct. However, the question specifically asks for the gas involved in the process, which refers to the reactants.

6. **Conclusion**: The gas involved in the photosynthesis process is carbon dioxide (CO2).

**Final Answer**: The gas involved in the photosynthesis process is carbon dioxide (CO2).

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