Answer:
I think that the answer might be d
 
        
                    
             
        
        
        
Answer:
Elements that are made from only one type of atom
Explanation:
 
        
             
        
        
        
Explanation:
Below is an attachment containing the solution. 
 
        
             
        
        
        
Acceleration can be defined as the rate of change in the velocity of an object. Option C is correct.
<h3>What is 
Acceleration?</h3>
- It is defined as the rate of change in velocity. 
- It can also be defined as the rate of change in position in a particular direction.

Where,
 - acceleration
 - acceleration 
 - change in velocity
 - change in velocity
 - time
 - time 
Therefore, acceleration can be defined as the rate of change in the velocity of an object. 
Learn more about Velocity: 
brainly.com/question/2239252
 
        
             
        
        
        
Answer:
D.
Explanation:
A solar system is a collection of planets, their moons, and other objects in orbit around a central star.