Major pollutant in jet plane emission is -

Options

A. `SO_(2)`
B. CFC
C. CO
D. `CCI_(4)`

Answer

### Step-by-Step Solution:

1. **Identify the Pollutants Emitted by Jet Planes**:
Jet planes emit various pollutants including carbon dioxide (CO2), hydrocarbons, nitrogen oxides (NOx), lead, black carbon, and aerosols.

2. **Understand the Nature of Aerosols**:
Aerosols are minute particles suspended in the atmosphere that can have significant effects on air quality and climate. They can consist of various compounds, including those from human activities.

3. **Determine the Major Aerosol Pollutant**:
Among the pollutants emitted by jet planes, Chlorofluorocarbons (CFCs) are a significant type of aerosol. CFCs are known for their role in ozone layer depletion.

4. **Recognize the Environmental Impact**:
CFCs not only contribute to air pollution but also have a detrimental effect on the ozone layer, which protects the Earth from harmful ultraviolet (UV) radiation.

5. **Conclude the Answer**:
Based on the information, the major pollutant in jet plane emissions is Chlorofluorocarbons (CFCs).

### Final Answer:
The major pollutant in jet plane emissions is Chlorofluorocarbons (CFCs).