What factors make it difficult for eastern europe to improve its water quality?
eutrophication
greenhouse gases
outdated sewer systems
raw water quality
unskilled employees
worn-out water utilities

The factors that make it difficult for Eastern Europe to improve its water quality are: outdated sewer systems , raw water quality , unskilled employees , worn-out water utilities.  

The majority of countries in Europe do have safe drinking water. However, there are few where you'll need to take precautions and some other, where you'll want to avoid drinking water In general, Western Europe has safe tap water but Eastern Europe is a place to be wary of the water.

wilsons 14 points

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this forms a narrow, steep sided inlet (sometimes deeper than 1300 metres) connected to the sea. the terminal moraine pushed down the valley by the glacier is left underwater at the fjord’s entrance, causing the water at the neck of the fjord to be shallower than the main body of the fjord behind it.