The Marrow Thieves Practice Test

The main idea here is how climate disaster reshapes the map: when the ice at the poles and high latitudes melts, sea levels rise and large areas become submerged. The event that causes most of the northlands to go underwater is called The Melt, the rapid, widespread melting of ice that leads to huge portions of land being flooded. The other options don’t fit that narrative: a flood is a sudden overflow in a localized area, a tsunami is a single massive wave from seismic activity, and rain would cause flooding in places but not submerge vast northern regions. The Melt specifically describes the icy collapse and resulting sea-level rise that drowns the north.