Answer:Particle pollution and health risks, including premature death. Health effects may include cardiovascular effects such as cardiac arrhythmia´s and heart attacks, and respiratory effects such as asthma attacks and bronchitis.
Explanation:
 
        
             
        
        
        
Answer - Cyanobacteria aka Algae that contributed in creating O2 for the atmosphere as a byproduct thru Photosynthetic.
Reason - Of course Algae make up mainly the whole world in waters and they do photosynthesis to give off oxygen in the atmosphere.
        
             
        
        
        
B because the diploids always line up in the middle on chromosomes
        
                    
             
        
        
        
Answer:
 Angiosperm
im not sure what this means lol but i remember reading it somewhere
 
        
                    
             
        
        
        
A mosquito bite, human response to smack their arm as a way of trying to defend