<u>Answer:
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When the outer electron shell is full in an element, this creates a Noble gas.
<u>Explanation</u>:
Noble gases are the elements that belong to group 18 in the periodic table.  Noble gases are also called as inert gases. The outermost shell of the noble gases are fully filled by electrons. Due to this the noble gases don’t react with any other elements and remain isolated.
There are 6 noble gases in the periodic table. They are helium (He), Argon (Ar), Neon (Ne) Krypton (Kr), Radon (Rn) and Xenon (Xe). Noble gases conduct electricity. They are fluorescent, odorless and colorless. Noble gases are used a maintain stable elements in a constant and safe environment.
 
        
             
        
        
        
Answer:
You have landed in a tundra. 
Explanation:
Birds as in penguins
Wolves as in Arctic wolves/foxes
The ground is hard because it is frozen
The air is cold 
 
        
             
        
        
        
Seeing that our species is constantly evolving, maybe it is starting to get more uncomfortable to walk on all fours.
        
             
        
        
        
Answer:
A point mutation with occur. 
Explanation:
This quesiton might need more info but in general a point mutation will occur. 
 
        
             
        
        
        
Aqueduct carries water over a long distance.