Answer:
Hey
Your answer would be Radioactive Decay and Heat of formation.
When earth first formed it was very violant. Some planetary scientists believe that the moon was created from a collision involving earth and Thea (a theoretical dwarf planet). these collisions that have formed earth heated it so much that it is still hot from them.
Radioactivce decay is another major fource of internal heat for earth.
 
        
             
        
        
        
The smallest parts that make up different types of matter are called atoms.
Atoms are tiny elements that are made up of literally everything on earth. <span />
        
             
        
        
        
Answer:
b is the answer tennis ball
 
        
             
        
        
        
Answer:
naol may pinoy dito nag jakoI
 
        
             
        
        
        
Ice is only thing which is mightier than steel  because it can breaks things which are made up of steels like ships but in the sunlight ice melts away it means it cowards away.