I would have to say Auroras. they occur when the suns particles get charged by the earths atmosphere
        
             
        
        
        
- ATP supplies energy for cellular activities by releasing one of the phosphate group in its molecule
- Cellular activities in living organisms make use of ATP as source of energy
<h3>What is ATP?</h3>
ATP stands for Adenosine triphosphate and it is an energy carrier molecule in living cells of an organism. 
The ATP molecule is made up of three components namely;
- Nitrogenous base
- 3 Phosphate groups
- Five carbon sugar
The ATP molecule gains one phosphate group when it stores energy and loses one when it releases energy. 
Learn more about ATP at: brainly.com/question/14637256
#SPJ1
 
        
             
        
        
        
Answer: Option C.
The number of protons and neurons it's contain.
Explanation:
Mass number of an atom is also called atomic mass of an atom which is some what expressed in Dalton i.e 1/2. The mass number is the total number of protons and neutrons altogether called nucleons in an atomic nucleus.
 
        
             
        
        
        
True because Sigmund Freud (1890-1930) developed these collection of theories
        
                    
             
        
        
        
Answer: D. The succession of community is completed.
Explanation:
A succession can be define as a series of gradual changes that occur in the biotic community of the ecosystem with respect to the changes that occur in the abiotic or non-living factors with respect to time until the ecosystem attains stability. 
A climax community is the community that develops in the end of the ecological succession. It is the stable community which does not require any further change to occur. With the development of the climax community the succession completes.