What caused the Earth's axis to become tilted? *

long ago, when Earth was young, it is thought that something big hit Earth and knocked it off-kilter. So instead of rotating with its axis straight up and down, it leans over a bit. By the way, that big thing that hit Earth is called Theia.

Explanation:

This tilt was caused by a collision with an Earth-sized planet billions of years ago; called Theia.

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.

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