Which of the following provides evidence that the continents on tectonic plates have moved away from each other in the past?

1.The composition and thickness of rock layers varies at different depths.

2.The frequencey of volcanic activity is higher at edges of tectonic plates.

3.Ocean currents can be disrupted near boundaries between tectonic plates.

4.Fossils of the same plans and animals are found on widely separated continents

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. 

The correct answer would be b) volume versus temperature, because they are also directly proportional.