Answer: Kingdom Animalia
Explanation
Multicellular organisms that feed or consume other organisms for energy are called heterotrophs and are usually found in the animal kingdom
 
        
             
        
        
        
The answer is (A) as <span> increasing risk of lung cancer is from increasing levels of exposure to outdoor air pollution and </span>particulate matter
        
             
        
        
        
D. Density increases is the correct answer!