5. Which amongst the following is a threat to the environment?
Options are:
(a) Bones of animals
(b) Plastic bags
(c) Vegetable peels
(d) Tea leaves

Plz send answers as soon as posible
And plz if you know answer then only message in two three questions some are writing plz make me as briliant and not sending answers it's really same full to you that you are not helping or hardworking and beging to give fruits means asking to give your result when you do any hard work than only na you get fruit so plz don't write plz make me briliant yes give correct answer then write I will make you as brilliant


Thank you hope everyone understood my feelings.......​