Test: The Layers of the Earth Test

Category: Earth Science

Description: How well do you know the Earth's composition?

The Earth's crust is made up of about 75% iron which produces strong magnetic fields.

True False

The continental lithosphere is, on average, 170 million years old.

True False

The layers of the Earth have been discovered by:

Studying drilled core samples Sending x-ray equipment into fault lines Studying seismic waves caused by earthquakes Studying the layers of other planets

What are the segments on the Earth's outer surface called?

Tactile plates Tacomic plates Tonic plates Tectonic plates

The Earth's lithosphere:

Contains tactile plates Is generally made up of titanium dioxide Is made up of two types: oceanic and continental Is synonymous with our atmosphere

The estimated temperature of the Earth's inner core is:

5,000 to 6,000 °C 1,000,000 °C 1,000 to 1,500 °C 2,400,000 °C

The Earth's inner core is made up of ____________________.

nickel-iron alloy lithium-ion nitrogen anorthrosite

What percent of the Earth is covered in salt water oceans?

82 71 65 49

Earth has the strongest magnetic field in our solar system.

True False

Earth is the densest planet in our solar system.

True False

Comments

y thank u test Well done! ^_^!!!

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