GEOLOGY

EARTH SCIENCE

TECTONICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Early observers thought continents may have been joined based on what observations
A
rocks and fossils
B
earthquakes.
C
magnetism.
D
coastline
Explanation: 

Detailed explanation-1: -Early observers thought that the continents might have been joined based on the observation that their coastlines look similar, so the answer is letter D.

Detailed explanation-2: -Fossil Evidence One type of evidence that strongly supported the Theory of Continental Drift is the fossil record. Scientists have found fossils of similar types of plants and animals in rocks of similar age. These rocks were on the shores of different continents. This suggests that the continents were once joined.

Detailed explanation-3: -As early as the1500s map makers were beginning to notice that the individual continents fit together like pieces of a jigsaw puzzle. It wasn’t until 1912 that Alfred Wegener first proposed an acceptable hypothesis (continental drift) as an explanation.

Detailed explanation-4: -The evidence for continental drift included the fit of the continents; the distribution of ancient fossils, rocks, and mountain ranges; and the locations of ancient climatic zones.

Detailed explanation-5: -The continental drift hypothesis was developed in the early part of the 20th century, mostly by Alfred Wegener. Wegener said that continents move around on Earth’s surface and that they were once joined together as a single supercontinent.

There is 1 question to complete.