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មូលហេតុនៃការបំពុលទឹក Cause of Water pollution
Pollution is also caused when silt and other suspended solid, such as soil, wash off powered fields, construction and logging sites, urban areas, and eroded river bank when it rains. Pollution in the form organic materials enter waterway in many difference forms as sewage, as leaves and
ដោយ: Learning English នៅ 2019-03-02 00:53
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ដំណោះស្រាយនៃការបំពុលទឹក Solution of Water Pollution
Clearly, the problems associated with water pollution have the capabilities to disrupt life on our planet to a great extent. Congress has passed laws to try to combat water pollution thus acknowledging the fact that water pollution is, indeed, a serious issue. But the government alone ca
ដោយ: Learning English នៅ 2019-03-02 00:53
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តើអ្នកអាចធ្វើដូចម្តេចខ្លះ ? ដើម្បីចូលរួមចំណែកក្នុងការកាត់បន្ថយការបំពុលទឹក ?
ដោយ: ចំណេះដឹងទូទៅ នៅ 2019-03-02 01:25
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