Carbon dioxide added by biomass burning is

Options

A. 0.8
B. 0.6
C. 0.4
D. 0.25

Answer

To solve the question regarding the amount of carbon dioxide added to the atmosphere by biomass burning, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Biomass**:
- Biomass includes materials like wood, solid organic waste, and fossil fuels. These are sources of energy that are burned to release energy.

2. **Identify the Byproducts of Biomass Burning**:
- When biomass is burned, it produces energy in the form of heat and releases carbon dioxide (CO2) into the atmosphere.

3. **Recognize the Impact of CO2 Emissions**:
- The carbon dioxide released contributes to the accumulation of greenhouse gases in the atmosphere, which is a significant factor in global warming.

4. **Determine the Percentage of CO2 from Biomass Burning**:
- It is known that approximately 40% of the carbon dioxide emissions come from the burning of various types of biomass for energy production.

5. **Convert Percentage to Decimal**:
- To express 40% as a decimal, we divide by 100:
\[ 40\% = \frac{40}{100} = 0.4 \]

6. **Select the Correct Option**:
- From the given options (0.8, 0.6, 0.4, 0.25), the correct answer is 0.4, which corresponds to 40%.

### Final Answer:
The amount of carbon dioxide added by biomass burning is **0.4**.

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