Can be improved by using alternative forms of transportation and regulating

select one
air quality
air pollution
smog
acid rain

The answer is air quality. The air quality index was developed to monitor air quality in cities and countries and the higher the AQI, the higher the health risks to the population. Improving air quality can be achieved by reducing carbon emission from vehicles, aircraft, and industries.

1.the evidene of the reaction

2.yes

3.yes

preservation because he preserves part of the land and preserves means save

explanation: