How does gravity cause Landslides​

A landslide occurs because the force of gravity becomes greater than either friction or the internal strength of the rock, soil, or sediment. ... Pushing the rock is easier if the surface slopes downhill or is slippery. The same is true for landslides—steeper slopes have less friction, making landslides more common.

the proximity of water was an advantage to western europe and its culture was able to flourish as a result. trade and travel by sea were easier and safer in historical times.

1. there are no mountains to protect it from the sea

2. and its has wet cool summers and wet, mild winters.

answer ( groundwater);