Volcanoes and acidic rain
Question:
In August 14 2016 a satellite took pictures above the Pacific ocean. In the picture, ash plumes are visible above Yasur volcano on Tanna Island that suggest volcanic activity. The nearby villages can be effected by the volcanic activity on many levels, one of which is acid rain. Volcanoes are the major natural source of acid rain. The rain near the eruption can be as acidic as pH=2 (as acidic as lemon juice). One scientist have conducted several measurments and have estimated, that there is a negative correlation between the distance from the volcano and the amount of acidic compounds in the air. You can see below the illustration of the satellite picture and the graph describing the estimated correlation between the distance from the volcano and the concentration of acidic particles in the air. 

 

Use the following simulation on "macro" mode, choose an acidic solution and dilute it. Notice the relationship between the solution concentration and the pH.  

Help the islanders to prepare better in case of acid rain! Which of the following graphs represent correctly the correlation between the distance from the volcano and the pH of the rain?
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History of edits
Edited BY: Lera Baburin Edit Date: 2016-08-17 19:55:20
Edited BY: Lera Baburin Edit Date: 2016-08-17 19:52:18
Edited BY: Lera Baburin Edit Date: 2016-08-17 19:49:22
Edited BY: Lera Baburin Edit Date: 2016-08-17 19:32:16
Edited BY: Lera Baburin Edit Date: 2016-08-17 19:31:37
Edited BY: Lera Baburin Edit Date: 2016-08-17 19:25:58
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