5.09 x 10 to the 6th power
        
             
        
        
        
G) The objects must be different temperatures
The way that heat transfer works is that the warmer object transfers energy to the colder one in order to reach equilibrium 
 
        
             
        
        
        
Answer:
A.
Explanation:
All other options are simply situational, while cold periods are usually seasonal.
 
        
             
        
        
        
1- B
2-B
3-C
4-B
5-A
6-A
I cant see the options for question 7, but here are the answers for 1-6. Hope they help!