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The researched area is located in Rotterdam. We picked a river behind our school, Wolfert Tweetalig. The river has two parts, one of them is called Heemraadsingel. The river is surrounded by grass and plants. It is located in a city where it rains very often, even in the summers. It contains 2,8 ha water.

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Study site Croatia:

The researched area is located in town Buzet. We searched river Mirna. Buzet is situated on north of Istra. Buzet has a moderate-warm-humid climate with hot summers. The summers are quite dry and the winters are rainy. Mirna is 53km. The area is located at an altitude of 13m.

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Study site Croatia:

The researched area is located in town Buzet. We searched river Mirna. Buzet is situated on north of Istra. Buzet has a moderate-warm-humid climate with hot summers. The summers are quite dry and the winters are rainy. Mirna is 53km. The area is located at an altitude of 13m.

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The research area is located in the city park in Nysa. it is surrounded by vegetation and the water flowing into the river comes from the Nysa lake. The area is located at an altitude of 233m. It is located in a temperate climate with average rainfall. The average annual temperature of the river is 8 degrees Celsius.

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We conclude that Poland has the highest pH river water. Croatia and Netherlands have the same pH. Poland has the highest pH because of smog. In Croatia and Netherlands it was raining those days when we were taking the water and rain effect opposite than smog, so pH of river water is lower. In Croatia flysch, vegetation and limestone effect on pH river water. In Poland where is now river, before was a see. Because of that salt rise up pH. There is also a soil strukture different because of former see.

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PLANING RESEARCH:

1.     Measure the pH of the water in the river

2.     Compare pH from each of us

3.     Follow results for couple of days

4.     Find out what affect on that

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In Poland it is snowing and raining also the ground around the river is dirty so pH of polluted water is low but not lower than Netherlands.

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We think that Croatia have the middle pH because there are no ships, it is out of the city, ground and water are not that dirty and it is not raining that often. Also there is just one small factory and it doesn't affect on the pH that much.

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We consider that Netherlands have the smallest pH of water in the river because it rains very often and ground around the river is dirty so the rain is dirty too. Also the river goes through the city and a lot of ships are sailing on the river.

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pH water is the number that we use to measure the acidity and the lumpiness of a solution or supstances. pH of water has a value of 7.

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QUESTION

In which country pH of water is the biggest and what depends on it?

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QUESTION

In which country pH of water is the biggest and what depends on it?