Prior to the 20th century, many scientists believed that

Subject : History

Question: Prior to the 20th century, many scientists believed that the continents had by the theory fxed positions on the Earth’s surface. This notion was _____ of continental drift, proposed in 1912 by Alfred Wegener, who claimed that over millions of years. the continents were once joined together and had gradually drifted apart phrase?

Which choice completes the text with the most logical and precise word or phrase?

A) Validated

B) Challenged

C) Explained

D) Developed

Expert Verified Solution:

The most logical and precise word to complete the text is:

B) Challenged

So the completed text would read:

“Prior to the 20th century, many scientists believed that the continents had fixed positions on the Earth’s surface. This notion was challenged by the theory of continental drift, proposed in 1912 by Alfred Wegener, who claimed that over millions of years, the continents were once joined together and had gradually drifted apart.”