Question 2. A researcher is carrying out research to investigate the relationship between the air temperature and air humidity. In this context is the air temperature: a dependent variable. an...

Question 2. A researcher is carrying out research to investigate the relationship between the air temperature and air humidity. In this context is the air temperature:

1. 
   
   a dependent variable.
   


2. 
   
   an independent variable.
   


3. 
   
   a confounding variable.
   
   


4. 
   
   none of the above.