The answer is false your welcome
        
             
        
        
        
Answer:
The awnser is d
Explanation:
i know cause i took the test
 
        
                    
             
        
        
        
A trace gas is a gas which makes up less than 1% by volume of the Earth's atmosphere, and it includes all gases except nitrogen (78.1%) and oxygen (20.9%). The most abundant trace gas at 0.934% is argon.
        
                    
             
        
        
        
I think that the answer is c. good luck
        
             
        
        
        
Answer:
C. a clamp light with a 150-W lightbulb placed 25 cm from the radiometer
Explanation:
because the temperature has to be set, meaning it can't change, and it should be a different distance away than the first one.
Hope this helps! Stay safe!