When the Earth Had Supermountains

PBS Eons • 2026-04-14T14:00:47Z • 10:51:00 • advanced • Science

Lead

Ever wondered how the Earth's ancient supermountains influenced the evolution of life? Dive into the fascinating world of geological history and discover the profound impact these colossal formations had on our planet's biological development.

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Quiz

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Q1. What were supermountains compared to in terms of height?

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Q2. What mineral did scientists study to understand the age of sediment samples?

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Q3. What was the name of the supercontinent associated with the formation of supermountains?

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Q4. Which period is known for the appearance of large, complex life forms?

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Q5. What element's influx is suggested to have contributed to the evolution of skeletons?

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Vocabulary

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supermountains

/ˈsuːpərˌmaʊntənz/

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Definition

Extremely large mountain ranges that are significantly taller and longer than typical mountains.

Example

The ancient supermountains dwarfed all known mountain ranges of today.

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sediment

/ˈsɛdɪmənt/

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Definition

Small particles of matter that settle at the bottom of a liquid, often forming layers over time.

Example

The river carried sediment downstream, which eventually formed new land.

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erosion

/ɪˈroʊʒən/

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Definition

The process by which soil and rock are removed from the Earth's surface by natural processes such as wind or water flow.

Example

Erosion caused the cliff to gradually lose its height over the years.

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coincide

/ˌkoʊɪnˈsaɪd/

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Definition

To occur at the same time or to occupy the same space.

Example

The festival will coincide with the local harvest season, attracting more visitors.

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hypothesis

/haɪˈpɒθɪsɪs/

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Definition

A proposed explanation for a phenomenon, which can be tested through study and experimentation.

Example

The scientist formulated a hypothesis to explain the unusual behavior of the species.

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nutrients

/ˈnjuːtriənts/

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Definition

Substances that provide nourishment essential for growth and the maintenance of life.

Example

Plants absorb nutrients from the soil to grow and thrive.

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