Sources of heat from inside earth is radioactive decay and residual heat.
        
             
        
        
        
Answer:
1. Someone in the United States has a stroke every 40 seconds. 
2. Every year, more than 795,000 people in the United States have a stroke.
3. In the year of 2018, 1 in every 6 deaths from cardiovascular disease was due to stroke.
 
        
                    
             
        
        
        
He thought that they were moons
but it was actually the rings of the planet
        
             
        
        
        
Its B, i had the same test
        
                    
             
        
        
        
Answer: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune
Explanation: