Answer:
option C is the right point 
 
        
             
        
        
        
Answer:
A. It is a source of genetic variation
 
        
                    
             
        
        
        
Answer: Exponential growth occurs when resources in the environment are abundantly available to a species.
Explanation: When a food source amount drops, so does the survival rate of the predator that eats that specific food source. When a food source grows too abundantly at too fast a rate, predators increase in numbers.
 
        
             
        
        
        
The correct answers are 2. arid climate and 4. oil resources
The climate always causes environmental climate, especially arid one, while oil both extraction and production creates environmental problems.