Yes, plastic is bad and harmful for environment because it is not biodegradable. Most of the plastic bags are received while purchasing but once used, it is kept as a trash bag which is then disposed in the road side garbage area. When we throw garbage in plastic covers, even the animals eat plastic along with food which is again harmful for the animals. Sometimes, the garbage is burnt. In the intension of burning the garbage, they even burn plastic which releases harmful gases like Dioxins.