Why do archaeologists excavate a site in reverse chronological order?

In stratigraphic excavations, deposits from a site are removed in reverse order to determine when they were made. Each deposit is assigned a number, and this number is appended to all objects, including artifacts, bones, and soil samples containing organic matter, found in the layer.

b toward the volcano.landward. the landward side of something is the side nearest to the land or facing the land, rather than the sea.

1.) irish.

2.) settlers could obtain cheap land nearby

3.) steam engine

explanation: