Answer:
C. Funnel clouds
Explanation:
Tornato is a revolving column of air in touch with earth surface, linked to  a convective clouds. 
It usually resembles its look, like a funnel cloud. 
 
        
             
        
        
        
Answer:
increasing
Explanation:
the sun is not bad for plants. In fact, it makes them grow. Its like without no food.
 
        
             
        
        
        
Answer:
conditioned stimulus
Explanation:
Conditioned stimulus - 
It refers to as the neutral stimulus , which triggers or initiates the conditioned response , is referred to as the conditioned stimulus . 
Ivan Pavlov was the very first one to give meaning to the term conditioned stimulus , by experimenting on the dogs . 
Hence , from the given scenario of the question , 
The correct answer is conditioned stimulus . 
 
        
             
        
        
        
"Connective", 
Hope this helped :)
        
             
        
        
        
Can I have more than 1 answer