Chapter 7: Problem 5

Why might you describe Earth as the water planet? Explain.

Short Answer

Expert verified

Earth is often described as the 'water planet' because it has an abundance of water (about 71% of its surface is covered with water, mainly in oceans). It is the only known celestial body in our solar system that has liquid water on its surface, which plays a crucial role in sustaining life and regulating the planet's climate. Earth's unique feature of having water in all three states – solid, liquid, and gas – which is critical for its weather and climate system, further contributes to its moniker as the 'water planet'.

Step by step solution

Highlight Earth's Unique Characteristics

Recognize and emphasize that Earth stands out in the solar system as it has liquid water on its surface. This distinguishes Earth from all other planets in our solar system.

Describe the Abundance of Water

Point out that nearly 71% of the Earth’s surface is covered with water, mainly in the form of oceans, which is a dominant feature not seen on other planets. This makes it look blue, thus it's often referred as 'The Blue Planet'.

Discuss the Role of Water in Supporting Life

Finally, mention the crucial role that water plays in sustaining life on Earth. It is key to all biological processes, acts as a habitat for many organisms, and regulates Earth's climate. Water’s existence in all three states solid, liquid, and gas on Earth is also unique and crucial for the planet’s weather and climate system.

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Why might you describe Earth as the water planet? Explain.

Short Answer

Step by step solution

Highlight Earth's Unique Characteristics

Describe the Abundance of Water

Discuss the Role of Water in Supporting Life

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