The answers would be:
In a solution, the solvent is present in a greater amount.
In a solutions, the solute dissolves in a solvent. 
In general, these are the best answers. The solute is what is being dissolved and the solvent is what dissolves. A solvent comes in greater amounts in a solution and it is the dissolving agent.
For example, sugar and water. 
To make a sugar water solution, you will need to dissolve sugar in water. Sugar is the solute in this case because it is what is being dissolved. The water is the solvent, because it dissolves the sugar. 
If you had more sugar than water, then you cannot make a solution.  
 
        
                    
             
        
        
        
A carbon which is attached to four different atoms or group of atoms with different environment is called as 
Chiral Carbon or 
Asymmetric Carbon.
Non-<span>
superimposable:
</span>                                     The mirror image (molecule) of chiral carbon cotaining compounds are Non.Superimposable on each other. They are called enantiomers of each other.
Polarized Light and Chiral Carbon:                                                       When a polarized light is allowed to fall on either enantiomer of chiral compound, it is rotated other clockwise or anti-clockwise.
Examples:                Below are three axamples of compounds containing chiral carbon.
 
        
        
        
Answer:
Phosphorus
Sulphur
And chlorine are non metals when bonded covalently gain electronic configuration of argon
Like PCl3
 SO2 and HCl
Explanation:
 
        
             
        
        
        
C. Spacecraft are built to be airtight.
        
                    
             
        
        
        
Explanation:
The first one is series circuit as it is joined one after another while the second one is parallel circuit joined in a parallel way. Ok the line just like this --------- is the wire , the sign like this | | is the battery and the circles with cross are the bulbs 
Hope this helps :) Have a great day