The composition of air can be best represented by drawing a :

Options

A. pie chart
B. bar graph
C. line graph
D. histogram

Answer

To solve the question regarding how to best represent the composition of air, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Composition of Air**:
Air is primarily composed of several gases, including nitrogen (approximately 78%), oxygen (approximately 21%), argon (approximately 0.93%), carbon dioxide (approximately 0.04%), and trace amounts of other gases.

2. **Identify the Purpose of Representation**:
We want to visually represent the proportions of these gases in air. This will help in understanding the relative amounts of each component in a clear and concise manner.

3. **Choose the Right Graphical Representation**:
Among the various options like pie charts, bar graphs, line graphs, and histograms, a pie chart is particularly effective for showing parts of a whole. Since we are dealing with percentages of different gases that make up the entire composition of air, a pie chart will allow us to see how much each gas contributes to the total.

4. **Draw the Pie Chart**:
To create the pie chart, we would represent the entire circle as 100%. Each gas will occupy a segment of the pie based on its percentage in the air. For example:
- Nitrogen: 78% (largest segment)
- Oxygen: 21% (second largest segment)
- Argon: 0.93% (small segment)
- Carbon Dioxide: 0.04% (very small segment)
- Other gases: Trace amounts (even smaller segments)

5. **Label the Pie Chart**:
Each segment of the pie chart should be labeled with the name of the gas and its percentage to provide clarity on what each part represents.

### Final Conclusion:
The composition of air can be best represented by drawing a pie chart, as it effectively illustrates the proportions of different gases that make up the air we breathe.

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