Answer:
law of diminishing marginal utility i hope this helps<3
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Answer:
Biomagnification of DDT leads to an increase in its concentration at the higher trophic level and its higher concentration in birds leads to the disturbance in their calcium metabolism. ... In this way, the biomagnification of DDT leads to a decrease in the bird population.
Explanation:
 
        
             
        
        
        
Answer:
B-to show land and water features 
Explanation:
because im not trying to use my brain right now.
 
        
                    
             
        
        
        
Explanation:
Economic sustainability consumption and development seeks to "get more and improve with much less," by minimizing resource usage, depletion and emissions although growing the standard of living, to maximize net positive externalizes from commercial development and economical benefit.
 
        
             
        
        
        
Answer: Email
Explanation:
E-commerce means electronic commerce or internet commerce, and it refers to purchase and selling of goods or services through the internet, and also transferring money to perform the transactions.
The 4 types of e-commerce presence that we have include the web sites, social media, e-mail, and offline media.