increases by 1 every time
The texture of sedimentary rocks, like the size of grains or chemical precipitates can show how the rock was formed. The fossils of sedimentary rocks can show when the rock was formed. The stratification and sorting of the particles can show were the rock was formed.
D - Mongolia. This is because it is a landlocked country which means it is only surrounded by countries, not oceans. Therefore, it would not have access to big oceans/seas.