Group behavior is like being open to the others and having a nice time, individual behavior is like silent and thinking.
Comparitive: Group behavior can be loud and full of conversations while individual behavior is like no conversation and silent.
Contrast: Group and Individual behaviors are the opposite of eachother
Hope this helps!
>Starfox5454<
 
        
             
        
        
        
Answer: The noble gases are a group of chemical elements that make up Group 18 on the periodic table. These gases all have similar properties under standard conditions: they are all odorless, colorless, monatomic gases with very low chemical reactivity.
 
        
             
        
        
        
Answer:
Through a circumstance known as "secondary transfer DNA", or "Touch DNA".
Explanation:
Most times when a crime is committed, DNA samples are obtained from surfaces in the scene where the crime was committed. There is a very huge possibility of picking up the DNA of someone who was never at the scene of the crime and this is a result of a condition known as Touch DNA. 
Because we touch several objects which can be moved to different locations and touch people who are also always mobile, our DNA cells can find their ways to a crime scene where we had never physically been to. This can lead to false verdicts of guilt.
 
        
             
        
        
        
D because it makes more sense