Question

how are poly bags harmful to animals and small childrens​

Answer 1

Turtles choke (or get their guts stuff up) on plastic bags. Toxic fumes emanate from burning bags (or more slowly emit toxic fumes without burning?). ... The plastic bag lasts a long, long time — not so biodegradable. Story: As a kid I was told not to put a plastic bag over your head.

Answer 2

poly bags has dangerous chemical specially black colour poly bags when we throw waste material with poly bags and throw it out the animal like cow they start eating the poly bags when the poly bags went inside the stomach it creates chemical and poisons

hope it helps you