Answer:
Urbanization has environmental and economic advantages for humans, but also substantial disadvantages, including increased problems with physical and mental health/stress, a modified climate, water and energy management, and air pollution.
 
        
             
        
        
        
Answer:
Atmospheric oxygen is too reactive
Explanation:
 
        
             
        
        
        
Answer:
The lymphatic system is a combination of circurlatory and immune systems 
Explanation:
yw :))