Which of the following are the evidences of the phenomenon of continental drift?
I. The belt of ancient rocks from Brazil coast matches with those from Western Africa.
II. The gold deposits of Ghana are derived from the Brazil plateau when the two continents
lay side by side.
III. The Gondwana system of sediments from India is known to have its counterparts in six
different landmasses of the Southern Hemisphere.
Select the correct answer using the code given below:
Answer:
(c)
Easy
Core Books
Core Books/NCERT
Statement I is correct: Geological studies show that the rock formations on the eastern coast of Brazil match with those on the western coast of Africa in terms of age, type, and structure. This supports the idea that these landmasses were once joined and later drifted apart. Statement II is correct: The gold deposits in Ghana and mineral-rich regions in Brazil show striking similarities. This is explained by the theory that both areas were part of a contiguous landmass in the past, and mineral resources were deposited when the continents were still joined. Statement III is correct: The Gondwana sedimentary sequences found in peninsular India have counterparts in six major landmasses of the Southern Hemisphere—Africa, South America, Australia, Antarctica, Madagascar, and the Falkland Islands. These sequences contain similar fossils and stratigraphic layers, indicating they were part of a single supercontinent (Gondwanaland).