The document discusses why water appears blue and provides facts about bodies of water. Water looks blue because it reflects the blue sky. The largest sea is the Sargasso Sea which covers 7,000 square kilometers. The longest river in Latvia is the Gauja River at 452 kilometers long. The deepest lake in Latvia is Lake Dridzis at a depth of 65.1 meters.

2. Why water have blue color?
What is the biggest sea in the world?
What is most longest river in Latvia?
What is most deepest lake in Latvia?

3. Water in the reservoirs have a blue color ,
because the sky is blue and the water reflects
sky and obtained the blue color!

4. The biggest sea in the world it is the
Sargasso (Athlantic Ocean) its size is
7000 square meters.

5. Longest river in Latvia is Gauja, its size
reaches 452 kilometers.

6. What is most deepest lake in
Latvia?
The deepest lake in Latvia is its depth
Dridzis composes 65.1 meter.