Answer :
To decrease air pollution, the human activity that will help the most is driving a hybrid car. Here's why:
1. **Reduced Emissions:** Hybrid cars use a combination of gasoline and electricity, resulting in lower emissions compared to traditional gasoline-powered vehicles. This helps in reducing harmful pollutants released into the air, such as carbon monoxide, nitrogen oxides, and hydrocarbons.
2. **Fuel Efficiency:** Hybrid cars are more fuel-efficient than conventional cars, which means they consume less fuel per mile driven. As a result, they emit less pollution overall, contributing to cleaner air quality.
3. **Promoting Green Technology:** By choosing to drive a hybrid car, individuals support the development and adoption of environmentally friendly technologies in the automotive industry. This promotes sustainability and helps in reducing the overall environmental impact of transportation.
In contrast, burning crops, burning household garbage, and using coal to produce energy are activities that contribute to air pollution due to the release of harmful pollutants and greenhouse gases into the atmosphere. These activities can worsen air quality and have negative effects on human health and the environment.