Question:
The options are;
a. Temperature
b. Thermal Energy
c. Hotness
d. Fire Energy
Answer:
The correct option is;
b. Thermal energy
Explanation:
A burner on a stove produces thermal energy which is used to raise the temperature of the metal container (kettle, pot or pans) in which items are placed for heating.
Thermal energy is the internal energy of the system given off as heat which when transferred from one body to another causes the temperature of the receiving body to rise. Thermal energy in a burner is given off when the gaseous fuel reacts or burns in the presence of or with oxygen to produce carbon dioxide and water vapor in an exothermic reaction.
4C + 5H₂ + 13/2O₂ (-125 kJ) → C₄H₁₀ + O₂ → CO₂ + H₂O (-2877 kJ).
 
        
                    
             
        
        
        
Answer:A
Explanation:becuse they waste less heat energy
 
        
             
        
        
        
Answer:
Unidentified flying object or fly saucer. 
Explanation:
 
        
                    
             
        
        
        
P1V1/T1=P2V2/T2   P2=1/2 P1 V1=1 T1=298K
1 P1/298= (1/2) P1V2/373  cross P1
1/298=1/2V2/373
1/298=1/V2 746
v2=746/298
V2=2.5L