The rate of heat loss of a planet is proportional to its ...

[xclash]

The rate of heat loss of a planet is proportional to its _______________, thus the smaller the world, the faster it is for heat to escape.
 
  Fill in the blank(s) with correct word

Question 2

The main energy source that drives a supernova explosion is ____.
 
  a. a shock wave from the collapse of the iron core
 b. a blast of gravitational waves emanating from the creation of a neutron star
  c. a burst of neutrinos generated in the core collapse
 d. energy from the radioactive decay of heavy elements
 e. fusion of the remaining hydrogen in the star through a chain reaction

[juliaf]

Answer to Question 1

surface area

Answer to Question 2

c

[xclash]

TYSM

[aliotak]

Thanks for the timely response, appreciate it