The strenght of an earthquake depends in part on

The logarithm of the amplitude of waves recorded by seismographs.

Explanation:

(Sorry if it’s wrong! I don’t remember it super well, but I think this is it. Also, here’s a picture.)

reflecting point a across the origin negates both of its coordinates.

b = (5, -4)

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.