Explain the two sources of heat that melted a planet during its ...

[silviawilliams41]

Explain the two sources of heat that melted a planet during its formation.
 
  What will be an ideal response?

Question 2

Calculations of the Sun's future evolution indicate that it will blow away almost half of its mass in several relatively short episodes about 4 to 5 billion years from now before it is finally extinguished.
 
  a. True
  b. False
  Indicate whether the statement is true or false

[debra928]

Answer to Question 1

heat of formation: violent impacts of infalling particles would also have released energy

radioactive decay: heat would begin to accumulate in its interior from the decay of short-lived radioactive elements

Answer to Question 2

False

[silviawilliams41]

Gracias!

[xiaomengxian]

Thanks for the timely response, appreciate it