<u>ANSWER:</u>
When a supergiant runs out of fuel, the object formed is either a black hole or a neutron star. 
<u>EXPLANATION:</u>
- Supergiant are very large stars in the galaxy that end their lives very quickly. 
- When a supergiant star loses its fuel, it blows itself by a supernove explosion. 
- When supernove explosion happens, the supernova outshines other stars in the galaxy and then slowly faded away leaving a dense object called black hole or neutron star. 
- This black hole or neutron star is surrounded by a mass of very hot gas and the elements of the supergiant star get scattered into the space. 
 
        
                    
             
        
        
        
The answer is a low-density particle
        
                    
             
        
        
        
Answer:
Intrusive rocks are coarse-grained in texture and crystallise slowly from magma deep in the earth's crust. Extrusive rocks are fine-grained in texture and crystallise quickly from lava on or near the earth's surface. The mineralogy determines the type of rock.