Choose ALL of the following that are FALSE about ground-level ozone. Chemicals that deplete it are regulated by the CAA CFCs have caused its concentrations to decline. It is a secondary pollutant that is regulated by the CAA. Phasing out the use ozone depleting chemicals has caused the hole in ground-level ozone to begin to close. It impacts the climate of Earth's surface, primarily by contributing to warming of the troposphere. It causes several million dollars in crop damages every year. It is considered "good" ozone.