convective heat loss from Earth's mantle slowing of the rotation of Earth's core increase in the density of Earth's atmosphere slow increase in the distance of Earth's orbit
I gave my students this multiple choice question: Extensive folding of sedimentary rock layers on Earth provides indirect evidence of certain processes occurring throughout Earth's history. Which of these is most likely one of these processes?

Only one answer is correct among these 4 choices:
- convective heat loss from Earth's mantle
- slowing of the rotation of Earth's core
- increase in the density of Earth's atmosphere
- slow increase in the distance of Earth's orbit

Could you tell me which one is correct?

convective heat loss from Earth's mantle