Earth is Born Quiz

The iron disaster happened when:

• Early peoples ran out of iron for tools, due to competition with Neanderthals.

• The Earth melted, due to heavy meteor impacts, and iron sunk to the center.

• Iron rose to the surface, coating the crust in hard metal.

Which of these resulted from the iron catastrophe?

• Lithosphere

• Asthenosphere

• Biosphere

• Magnetosphere

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What are the benefits of the magnetosphere?

• It makes magnets work.

• It causes the seasons.

• It protects us from the solar wind.

• It protects us from meteors.

The two sources of Earth's water were:

• Water vapor given off by volcanoes and water from comets.

• The Moon and the Sun.

• Oxygen from plants combining with Hydrogen from the atmosphere.

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The moon formed this way:

• Out of green cheese.

• The Earth captured a passing asteroid.

• A planetesimal smacked into Earth, knocking off its outer layer, which coalesced into the Moon.

• The Earth and the Moon were part of a massive planet that split into Mars, Venus, Mercury, the Moon, and Earth.

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The effects of the Moon on Earth include:

• It created oceans and gives us heat.

• The planet is shielded from the harshness of the Sun, and so is cooler.

• Werewolf-inducing lunar radiation.

• Seasons, and a more even temperature throughout the planet.

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Evidence for comets hitting the Earth include:

• Heavy water and impact craters on the Moon.

• Our magnetosphere and the Earth's tilted axis.

• Earth has no heavy water.

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How do we use meteorites to date the age of Earth?

• The age of the meteorites can be determined by their thickness.

• The age of the meteorites can be determined by radiometric dating.

• The age of the meteorites can be determined by spectroscopy.

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Having oceans on Earth does this for us:

• Moderates (keeps from extremes) the temperature of the planet.

• Gives us extremes of temperature between the Earth and the poles.

• Keeps the insides of the planet from oozing out.

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How did the matter which formed Earth come together?

• By electromagnetic radiation.

• By gravity.

• By breaking off of Jupiter.

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