to check or control the growth of other microbes ,it is critical to maintain the concentration of ampicillin
 
        
             
        
        
        
I think it's letter A.litter left on the field after a ball game
 
        
             
        
        
        
Answer:
Biodiversity is the variety and variability of life on Earth. Biodiversity is typically a measure of variation at the genetic, species, and ecosystem level. Terrestrial biodiversity is usually greater near the equator, which is the result of the warm climate and high primary productivity.
Explanation:
the number of trophic levels in a food web
 
        
             
        
        
        
D. Coal is naturally made and cannot be renewed by humans. 
 
        
                    
             
        
        
        
Answer:
The process by which green plants and some other organisms in the presence of sunlight to synthesize nutrients from carbon dioxide and water is called photosynthesis.