Which lake is considered Europe’s cleanest lake?

Here is the question :

WHICH LAKE IS CONSIDERED EUROPE’S CLEANEST LAKE?

Here is the option for the question :

• Constance
• Garda
• Como
• Annecy

The Answer:

And, the answer for the the question is :

Explanation:

[STC0018538]. Lake Annecy in France is renowned as the cleanest lake in Europe, thanks to strong environmental protection measures in place since around 1960. Following WWII, the region experienced a significant population increase, and the lake’s water quality deteriorated. An organisation was formed to battle the impact and preserve the lake, which resulted in a significant increase in water quality.