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In order to remind humans of the damage due to urban development, and as well as how natural processes can cause acid rain can be detrimental to people, the PH umbrella was designed. This umbrella was made of pH test paper to indicate the levels of acid in the rain. When you go outside in rainy days, you will find the Earth is getting worse and be aware of the change of acid rain.
DaYeh university
Pingtung, Taiwan
Jing-Yun Hu,
DaYeh university