Clostridium, Bacteroides, and the methane-producing archaea (methanogens), are called obligate anaerobes because their energy-generating metabolic processes are not coupled with the consumption of oxygen.
        
             
        
        
        
The
most important thing to prepare for a storm is knowing
were to go in case you need to evacuate. If the later is not a
possibility then create
and practice a plan of action for you and your family and build and
emergency kit with first-aid supplies, water and nonperishable foods.
After
that
you can focus on identifying the safest place in your house,
establish an emergency communication channel with your family and
reinforce the roof, windows and doors. <span>Secure
the heavy furniture to avoid accidents and move it away from door and
windows and keep tuned to your local radio station to know how to
expect at every time.</span>
 
        
             
        
        
        
<u>Answer:
</u>
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.
 
        
             
        
        
        
The answer is it provides us with vitamins. Hope this helps.