Consist of lithosphere, asthenosphere, mesosphere, outer core, and inner core. Distinguished based on rock strength and rigidity. (COMPOSITIONAL LAYERS, MECHANICAL LAYERS )

Early geologist believed that the continents and the oceans had fixed geographical positions. (TRUE OR FALSE)

Lithosphere lies over a weaker region in the upper mantle. (TRUE OR FALSE)

According to RAISIN THEORY, the earth is likened to a grape that contracted into a raisin due to cooling process that occurred after the Big Bang 13.77 B years ago. (TRUE or FALSE)

Plates are fit together like the pieces of a jigsaw puzzle and the movement ranges from less than 1 to more than 15cm per year. (TRUE or FALSE)

The supercontinent broke apart because of earthquakes, which formed the separate continents we know today. (TRUE OR FALSE)

Identical fossils of organisms were discovered on different continents suggesting that a land was probably present in the past. (TRUE OR FALSE)

Composed of the crust, mantle and core; and distinguished based on composition. (COMPOSITIONAL LAYERS, MECHANICAL LAYERS )

Wegener’s theory and sea floor maps were used to develop the theory of plate tectonics. (TRUE OR FALSE)

ABRAHAM ORTELIUS suggested that America was originally connected to Europe and Africa and that the projecting parts of 2 continents would fit the recesses of America. (TRUE OR FALSE)

ALFRED WEGENER noticed that the continents are fixed. He proposed the Continental Drift Hypothesis. (TRUE OR FALSE)

CLARENCE EDWARD DUTTON further explained the contracting Earth concept and proposed the term “ISOSTACY” which states that wherever equilibrium exists in the Earth’s surface, equal mass must underlie equal surface areas. (TRUE or FALSE)