Question

why should biodegradable wastes and non-biodegradable wastes shoud be discarded in two seperate dust bins

Answer 1

This is because biodegradable wastes can be recycled for future use. If we mix them together in one dustbin, then it will become difficult for us to recycle the biodegradable waste as non-biodegradable waste will make the biodegradable waste unfit for recycling and also it will interfere with the recycling process.