Answer:
 kingdom
Explanation:
 kingdom is the broadest taxonomical classification
 
        
             
        
        
        
Answer:
hand lens is used to make small object to appear larger hence visibility is easily attained
 
        
             
        
        
        
Answer:
The correct answer is single,double and triple covalent bonds .
Explanation:
A carbon atom can form a single bond with another carbon atom example ethane.
A carbon atom can form a double bond with another carbon atom example ethylene
A carbon atom can form a triple bond with another carbon atom example acetylene.
  But during the formation of  Carbon carbon single bond or double bond or triple bond the valency of carbon atom that is 4 is always maintained.
 
        
             
        
        
        
I assume the mountainous area.
Explanation: Hydroponic describes planting without soil. When there is erosion on a mountain area, any soil or dirt would likely go away.
Hope this helps!