Explain whqt might be able to lea about the seater thwt existed million of years ago by studing rocks that came into contact with seawater art that time in the past

the core of the sun is so hot and there is so much pressure, nuclear fusion takes place, hydrogen is changed to helium. nuclear fusion creates heat and photons. when the heat reaches the earth it warms the molecules of the atmosphere, and they warm other molecules and so on.

is this a psat question, if so do not cheat try your best.