Answer:
They can worsen symptoms for people with breathing difficulties.
Explanation:
Ultrafine particles are small particles found in dirty air. They aren’t filtered due to their very small size. They enter the lungs and cause certain conditions such as oxidative stress, inflammatory mediator release, and could induce heart disease, lung disease and other systemic effects.
People who have breathing difficulties have their case worsened due to these particles. 
 
        
                    
             
        
        
        
The genes to be resistant to an antibiotic already exist in the bacteria's genes.  Those whose phenotypes are resistant to the antibiotic will survive the antibiotic which kills the other non-antibiotic-resistant bacteria.  The surviving bacteria will then asexually reproduce, producing more antibiotic-resistant bacteria.
        
             
        
        
        
Answer:
I think stream bank. It grows in moist places and wetlands, and is especially abundant along streamsides and riparian areas at elevations below 1400 m. 
Explanation: