Answer:
This is hard for me also but I am trying to find out answer
Explanation:
Please mark me as brainlist. 
 
        
             
        
        
        
Chemical, physical, and biological 
are the three types of weathering
Hope this helped!!
        
                    
             
        
        
        
Answer:
A white dwarf is what stars like the Sun become after they have exhausted their nuclear fuel. Near the end of its nuclear burning stage, this type of star expels most of its outer material, creating a planetary nebula. Only the hot core of the star remains. ... That means a white dwarf is 200,000 times as dense.
Explanation:
they are cold 
they are about the size of Earth
these both are not true