The correct answer is - gravity. The gravity with it's pulling force puts pressure on the objects by pulling them downwards, which with the help of few other factors makes the objects break and fall, and thus change the relief forms. But this is only when there's something in a position that means that it can fall downwards, but this is lacking on a flat land because there's nowhere where the object can be pulled and fall down.
The difference in the coloration of the whale is due to mutation. Mutation is an alteration of the gene of an organism which can result in a change in phenotypic qualities. Mutation can be caused by exposure to mutagens such as industrial chemicals.
Metamorphism is the transformation in the existing rock type and means a change in the form when the rocks are subjected to changes in heat and pressure.
Regional metamorphism is also called dynamic metamorphism and foliation occurs when a rock s shortened along the axis during recrystallization. Such as mica, the foliated rocks is a product of the stress that deforms the rocks along the plane.
Deep ocean trenches, volcanoes, island arcs, submarine mountain ranges, and fault lines are examples of features that can form along plate tectonic boundaries.
