Which land feature supports the theory of continental drift?
A. canyons
B. volcanoes
C. coal fields
D. oceans
The Correct Answer and Explanation is:
The correct answer is:
C. coal fields
Explanation:
The theory of continental drift, first proposed by Alfred Wegener in the early 20th century, suggests that the continents were once part of a single massive landmass known as Pangaea. According to this theory, over millions of years, this supercontinent broke apart, and its pieces slowly drifted across the Earth’s surface to their current locations. One of the key land features supporting this theory is the presence of similar coal fields found across continents that are now widely separated by oceans.
Coal forms from the remains of ancient tropical plants that thrived in warm, swampy regions. For coal deposits to be similar across distant continents, these landmasses must have once shared the same climate and environment, allowing tropical vegetation to grow. Such similarities in coal fields are seen across continents like South America, Africa, and Antarctica. This supports the idea that these landmasses were once connected, experiencing the same tropical conditions, and only later separated as they drifted apart. For instance, coal fields in the eastern United States have been found to be remarkably similar to those in Western Europe, suggesting these regions were once joined.
The distribution of coal deposits in colder regions such as Antarctica is particularly significant. Today, Antarctica is covered by ice and is too cold to support the lush forests required to form coal. The presence of coal fields in Antarctica strongly suggests that this continent was once part of a warmer landmass, positioned closer to the equator.
Wegener also used other geological and paleontological evidence to support his theory, such as matching mountain ranges, similar rock formations, and fossil distribution across continents. But the widespread distribution of coal fields is one of the clearest indicators of the continents’ former alignment and the shifts that followed. While the theory of continental drift evolved into the modern understanding of plate tectonics, these coal fields remain a vital piece of evidence that the continents were once connected.