It i a very common phenomenon for u when we go hopping ,we will buy what we need in daily life toghter with many "free" platic bag ,which we are inclined to dicard caually.It i an intreting and" beautifull landcape" to ee many corlorfull platic bag flying in the ky epecially when there i a h2 wind.And we call thee platic bag "white pollution". .
A we all know,the white pollution i beoming more and more eriou nowaday. Though we know it bad effect,till we find it difficult to refue them,a they are very convenient for u.For intance,if we et a platic bag into a bowl when we eat our food,we will feel it eay to wah.However we ignore it bad effect.So,I think,we hould keep a careful eye on them to keep our healthy and have a beautiful environment.