# PTE Re-order #26: Geological Evolution of the...

Re-order Paragraphs #26 - Level 2 - Feeds Reading

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- When the Earth was formed 4.6 billion years ago, it would never have been called the Blue Planet.
- There were no oceans, no oxygen in the atmosphere, and no life.
- But there were violent collisions, explosions, and eruptions.
- The Earth in its earliest stage was molten, which allowed elements to separate into layers within the Earth: gravity pulled denser elements toward the Earth's center, while less dense materials accumulated near the surface.
- This process of separation created the layers of the Earth as we know them.

## Answer

1. When the Earth was formed 4.6 billion years ago, it would never have been called the Blue Planet.
2. There were no oceans, no oxygen in the atmosphere, and no life.
3. But there were violent collisions, explosions, and eruptions.
4. The Earth in its earliest stage was molten, which allowed elements to separate into layers within the Earth: gravity pulled denser elements toward the Earth's center, while less dense materials accumulated near the surface.
5. This process of separation created the layers of the Earth as we know them.

## Explanation

The sequence follows a logical chronological flow: starting with the initial state, describing the harsh environment, detailing the active physical processes, and concluding with the resulting structural outcome.

(Sentence 1): The paragraph begins by stating that when the Earth was formed 4.6 billion years ago, it would not have been known as the Blue Planet, establishing a context for its early conditions. (Sentence 2): It then details the absence of oceans, oxygen, and life, providing a clearer picture of Earth's primitive state. (Sentence 3): The focus shifts to the tumultuous environment of early Earth, characterized by violent collisions, explosions, and eruptions, highlighting the chaos of its formation. (Sentence 4): The paragraph continues by explaining that the molten state of early Earth allowed for the separation of elements into layers, detailing how gravity influenced this process. (Sentence 5): Finally, it concludes by stating that this process created the distinct layers of the Earth as we know them today.

## Hints

- Start by finding the sentence that introduces the topic of the planet's formation 4.6 billion years ago.
- Look for the connection between the molten state of the planet and the formation of its internal layers.

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