A b c or d about the earth...
this is easy if u know

What happens to an isotope during radioactive decay?

Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system

Hi , i am new here can anyone me out with this question why is space black after having so many shining objects like sun , moon , stars