Which of the following is true about wind and water changing the size of mountains over many millions of years? A: The continuous movement of wind and water changes the size of mountains over many millions of years B: Nothing can change the size of mountains over many millions of years not even the continuous movement of wind and water. C: The continuous movement of wind and water changes the size of some mountains, but not all mountains D: Even though mountains change in size over many millions of years, the changes are not due to the continuous movement of wind and water

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant.