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Theory of Evolution

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Theory of Evolution

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Thermosphere

What Is the Thermosphere?

The thermosphere is the thickest atmospheric layer (80-550 km). It’s known for its aurora borealis, orbiting satellites and the Karman Line (edge of space).

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Eutrophication Process

How Does Eutrophication Work? Causes, Process and Examples

Eutrophication occurs in water bodies when too many nutrients are introduced. Over-fertilization of water causes algae to grow blocking sunlight for plants.

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River Delta Schematic

River Delta: How It Forms

Streams carrying too much sediment clogs the entrance into the basin. As sediments dump in, water flow decelerates and widens the entrance forming a delta.

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Earth Interior Layers

Inside Earth: The Crust, Mantle and Core

All planets have layers. Inside Earth, we have a crust, core and mantle. Imagine a team of drillers who set out to drill a hole to the other side of Earth.

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Earth Rotation

Earth Rotation: The Day-Night Boundary

As the Earth spins, the sun always shines on one side which gives it sunlight. When you’re facing the sun, it’s daytime. But when you’re not, it’s night.

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Meteoroid Meteor Meteorite Differences

What’s the Difference Between Meteors, Meteorites and Meteoroids?

Their difference is location. Meteoroids are up in the sky. Meteors fall to Earth and flash light breaking down in the atmosphere. Meteorites are on Earth.

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