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What would happen if the Earth was split in half?

As the Earth is methodically sliced in half, its mantle and core would be exposed to the vacuum of space, causing massive earthquakes that would be felt everywhere on the planet. Those who are the furthest from the split would have the best chance of surviving the longest, at least from the initial earthquakes.

What would happen if Earth had a thinner atmosphere?

A thinner atmosphere would ordinarily mean an overall colder Earth, the researchers said, because gases trap heat, and more gas traps more heat. All of that water vapor, along with more carbon dioxide and methane, would have kept the Earth relatively balmy, the researchers suggested.

What would happen if Earth’s mass is smaller by half?

We won’t be able to answer every question, but we’ll do our very best. The Moon would pull less strongly at the Earth, and the Earth and Moon would revolve around each other more slowly. This reduces the tides on Earth, which means the sea levels won’t rise and fall as much as they do now.

Why is it helpful to Earth’s systems that the atmosphere is so thick?

Air pressure is crucial for life. Not only does it help the atmosphere retain water vapor and trap heat from the sun, but it also affects the very chemical reactions on which life depends. A thicker atmosphere would have helped to compensate. …

Why is the mantle so important?

The Earth’s mantle plays an important role in the evolution of the crust and provides the thermal and mechanical driving forces for plate tectonics. Because subducted plates are relatively cool, they decrease the temperature of nearby mantle, leaving relatively warm mantle in the regions between two subduction zones.

What are 3 facts about the mantle?

It has three main layers. The upper mantle extends from the base of the crust (the Moho) down to 660 kilometers depth. The transition zone is located between 410 and 660 kilometers, at which depths major physical changes occur to minerals. The lower mantle extends from 660 kilometers down to about 2,700 kilometers.