The principle reason that most of north america and europe do not have difficulties with access to potable water is their wealth.
a. true
b. false

True

Explanation:

True

North America and Europe have a Wealthy set of nations. They are world's leading exporter and have cutting age technology through they have made life for their people easier and sustainable. So, is their access to potable water, with use of best of technologies they have reclaimed water from various sources, they have clean river and rain water harvesting systems. These technique require lots of capital which these countries and afford easily.

Hence we can say that The principle reason that most of North America and Europe do not have difficulties with access to potable water is their wealth.