กลิ่นเหม็นเกิดจากมลพิษทางน้ำ เพราะน

Odor is caused by water pollution. Because rotten water resulted in stink fly out.When you walk through the sewers, it will always smell.The vulnerability affects students Under the supervision of teachers, and people who walk through.To work around this problem by using a grease trap pond 1. and fat.2. do not dispose of garbage and waste water into the.

Stench caused by water pollution
because water causes a rotten stench hanging out
on a walk through the water. I can always smell
the problem does not affect students, teachers, employees and passersby to solve this done. 1. Use a grease trap and the fat 2. Do not litter. And waste into the water.

The stench caused by water pollution.
because water rot resulted in smell floating out
when passing through the water. It will smell always
by this problem affecting the students, teachers, staff, and the people who pass through

to solves this problem by 1.Use grease trap and the fat
2. No garbage and waste into the water.