Study shows Earth’s poles wandered far for millions of years

The video discusses a theory that Earth's crust tilted 84 million years ago. Researchers studied fossilized bacteria that align with Earth's magnetic field to understand this movement. They found that the crust moved 12 degrees from the magnetic poles over five million years, a process called True Pole Wander, which was too gradual to cause major tectonic changes.

What significant event regarding the Earth's crust is discussed in the research paper?

• The Earth's crust was completely destroyed.

• The Earth's crust became thinner.

• The Earth's crust expanded significantly.

• The Earth's crust was tilted on its side 84 million years ago.

What did the researchers study to understand the Earth's past magnetic field?

• Volcanic ash layers

• Ancient water samples

• Rock samples with fossilized bacteria

• Fossilized plants

How did the magnetite crystals in the bacteria help the researchers?

• They indicated the presence of water on Earth.

• They showed the Earth's temperature millions of years ago.

• They revealed the Earth's magnetic field orientation at the time of their creation.

• They provided information about ancient climates.

What was the maximum degree of movement of the Earth's crust from the magnetic poles?

• 15 degrees

• 8 degrees

• 5 degrees

• 12 degrees

What is the term used to describe the gradual movement of the Earth's crust?

• Magnetic Reversal

• True Polar Wander

• Plate Tectonics

• Continental Drift