From researching the topic to participate in the Provincial Science-Technology Contest for High School Students, a group of students from Dang Tran Con Senior High School made tea bags from rose myrtle flowers, a unique product from the local raw material sources.

Plastic waste is not biodegradable, which can only break into small pieces and float everywhere. With the exposure to sunlight, it may take many centuries to decompose. Those very familiar everyday small objects such as straws and bottle caps could take from 100 to 500 years to decompose; while it takes from 500 to 1,000 years for the flimsy plastic bags, and from 50 to 200 years for convenient foam cups to decompose, etc. Our environment and health are extremely negatively affected by plastic waste. It directly impacts soil, water, and air, which also creates favorable conditions for many disease-causing bacteria.