Continental Drift Theory and its evidence

The theory was proposed by Alfred Wegener. Exam tip: always connect Wegener with continental drift.

Wegener stated that all continents were joined as Pangaea. Exam tip: remember Pangaea as the supercontinent.

The vast ocean around Pangaea was called Panthalassa. Exam tip: Pangaea means land and Panthalassa means ocean.

The theory explains the slow movement of continents. Exam tip: drift means movement over time.

Pangaea split into northern Laurasia and southern Gondwanaland. Exam tip: remember the north-south division.

Wegener suggested pole-fleeing and tidal forces as causes of movement. Exam tip: remember these as Wegener's proposed forces.

The outline of the east coast of South America closely matches the west coast of Africa, like pieces of a jigsaw puzzle. Wegener used this as important evidence that the continents were once joined. Fossil evidence refers to the distribution of similar fossils, not to the matching shape of coastlines. Exam tip: associate puzzle-like matching coastlines with jigsaw fit evidence.

Rocks of similar age and structure were found on separated continents. Exam tip: rock similarity is an important evidence.

Tillite is a deposit left by ancient glaciers. Exam tip: link tillite with glacial evidence.

Glossopteris fossils were found on different southern continents. Exam tip: treat it as fossil evidence.

According to Wegener an ocean formed as continents moved apart. Exam tip: link the Atlantic with separation.

The forces suggested by Wegener were not considered enough to move continents. Exam tip: mention weak mechanism in criticism.

Similar fossils suggest that landmasses may once have been connected. Exam tip: fossils show former land connection.

Laurasia was the northern part of Pangaea. It mainly included landmasses corresponding to present-day North America, Greenland, and Eurasia; therefore, option B is correct. South America and Africa were major parts of Gondwanaland, so option A is incorrect. Exam tip: remember Laurasia with northern landmasses and Gondwanaland with southern landmasses.

Gondwanaland, or Gondwana, was an ancient southern supercontinent. It included land areas that later became South America, Africa, Antarctica, Australia, India, and parts of other regions. India was once joined to this southern landmass and later moved northward before colliding with Asia. This movement is one reason continental drift is important in understanding the present position of India and the Himalayas.

Option C, India, is correct. Europe and Greenland were associated mainly with the northern continental grouping, while the Arctic Ocean is an oceanic area, not a continental landmass. The question asks for a land area included in Gondwanaland, and India fits that description. The key memory link is “India and the southern supercontinent.” This also helps connect the answer with evidence used in discussions of continental drift.

Ancient climate signs suggest continents were once at different latitudes. Exam tip: link climatic evidence with former positions.

Glacial striations show that these areas were once glaciated together. Exam tip: connect striations with glacier direction.

The west coast of Africa and east coast of South America show clear similarity. Exam tip: treat it as map-based evidence.

Alfred Wegener presented the idea of continental drift in 1912. He argued that the continents were not permanently fixed in their present positions but had once been joined in a large landmass and later moved apart. His proposal was based on clues such as the matching shapes of coastlines, similar fossils on now-separated continents, and related rock formations. The theory was debated at first, but it became an important foundation for later plate-tectonic ideas.

Option C, 1912, is correct. The other dates do not match the year in which Wegener first presented the continental-drift idea. A later publication helped spread and develop his arguments, but the date asked in this question is the initial presentation year. Therefore, remember the pair “Wegener—1912.” This avoids confusing the proposal with later research on plate tectonics.

Pangaea means all land or one united landmass. Exam tip: connect it with joined continents.