Answer:The problem that was better defined was that of shortening the amount of tme students wait in the lunch line.
Explanation:
The second problem was not well defined because the school spirit can be increased in a vast number of ways which the class didn't mention any. 
Therefore todefine the second problem, the class has to state a specified area in the which they want to tackle in other to incresa the spirit of the school just like the first class has specifically stated that it is the time student wait in lunch line they want to shorten.
A well defined problem will be more easier to solve than the one which is not defined. 
 
        
             
        
        
        
Formula:
Hydrogen Chloride = HCl                                             (Chemical Compound)
Sodium = Na                                                                   (Chemical Element)
Reactants:
A simple definition of a reactant can be the substances that go into a chemical reaction. By substances I mean any chemical.
Products:
A simple definition of a product can be the substances produced at the end of the reaction. Again by substances I mean any chemical. 
Definition of the answer:
We know that Sodium is a Chemical Element and as decribed in the picture it was mixed by Hydrogen Chloride and we know that is a Chemical Compound. So in this case the Na CI can be the product that was produced at the last and it was the result after the chemical reaction was taken place. The reactant can be the Sodium. I chose that because Reactant is a substance/chemical that goes into a chemical reaction. So as seen in the picture it went into the beaker.
Hope this helps.
 
        
                    
             
        
        
        
Answer:
the Thar Desert 
Explanation:
(it's a desert so its dry)P.S sorry if I'm wrong
 
        
             
        
        
        
They could use these animals to carry their supplies. They helped carry wounded soliders around as well