Answer:
la causa principal es la quema de combustibles fósiles
 
        
             
        
        
        
If your looking for the answer to be either hablarías/hablaría it is hablaría.
        
                    
             
        
        
        
Answer:
Is Gloria going to buy that sweater? (pants) Did you wear these sandals? (tennis shoes) Do you want to see these underwear? (stockings) Do you wear that David suit? (black jacket) Did Silvia decide to buy those sunglasses? (hat) Did that seller show you the dress? (dependent)
Explanation:
 
        
                    
             
        
        
        
No entiendo muy bien lo que hay que hacer :(