Answer:
The <u>air quality index</u> is a measure of ozone and other pollutants in the air.
Explanation:
 
        
             
        
        
        
D-walls and doors would represent the cell membrane
        
             
        
        
        
Answer:
towards the cell, because salt, and the cell may die
Explanation:
 
        
                    
             
        
        
        
Answer:
The inquiry is a process prompted by curiosity, observation or question.
Explanation:
An inquiry is the process is used to fulfill curiosity by investigation or asking the question. A conclusion is drawn on the basis of the investigation. This process includes 3 main steps:
Observation,
Investigation or question, and
Conclusion.
Thus, the correct answer would be curiosity, observation or question.