The Renaissance began in Italy partly because Italian city-states were wealthy. The answer to your question is A. I hope this is the answer that you are looking for and it comes to your help.
        
             
        
        
        
The correct answer is B. pollution.
        
                    
             
        
        
        
Answer:
A niche is a way that a population uses the living and nonliving resources of its habitat.
Explanation:
A niche is the role a population has in it's habitat, and the second option is the best one that matches.
 
        
             
        
        
        
Answer:
1.Improve sanitation facilities by providing toilets and latrines that flush into a sewer or safe enclosure.
2.Promote good hygiene habits through education. ...
3.Implement rainwater harvesting systems to collect and store rainwater for drinking or recharging underground aquifers.