Scientists would like to learn more about the seismic activity that occurs on Earth’s surface. They are set to take a journey to the deepest part of earth. Develop 4 questions they should ask before they take this journey. Be sure to anticipate the factors that will change as they travel from the surface of Earth towards the core. ( giving brainliest)

At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.