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Answer:
They are organisms (individual organisms called "plankters") that live in large bodies of water.
Explanation:
They reside in large bodies of water (oceans, lakes, etc). They are usually abundant in surface waters because all ecosystems of plankton live off input of solar energy. 
 
        
             
        
        
        
The would most likely have to compete for their food and space. 
        
             
        
        
        
Answer:
A hydrogen atom is made up of a nucleus with charge +1, and a single electron. Therefore, the only positively charged ion possible has charge +1.
Explanation:
Hope this helps
 
        
             
        
        
        
In the meaning of wave x it would be solid