Why is the gravitational potential energy of an object 1 meter above earth's surface more than its potential energy 1 meter above the moon's surface? question 3 options: a) the object's mass is less on the earth. b) the object's weight is more on the moon. c) the object's acceleration due to gravity is more on the earth. d) both a and c

Peat deposits are found in waterlogged places where dead plant material piles up. when peat is buried, it undergoes compaction. it is subjected to heat and pressure for a long time, and a lot of water is squeezed out during this process. nearly ten vertical feet of original peat material becomes one vertical foot of coal. which of these remains unchanged in the system during the conversion of peat to coal? a) area b) density c) mass d) volume