Answer:
First one, third one, and fourth one
 
        
                    
             
        
        
        
Answer:
The three characteristics of a good scientist are his curiosity, creativity and problem-solving skills.
Explanation:
 
        
             
        
        
        
Answer:
 , level is rising.
, level is rising.
Explanation:
Since liquid water is a incompresible fluid, density can be eliminated of the equation of Mass Conservation, which is simplified as follows:


By replacing all known variables:

The positive sign of the rate of change of the tank level indicates a rising behaviour.