Academic IELTS (Band 5 and Below) - Pollution

any unwanted or excessive sound that may cause harm or disturbance to human or animal life

the unwanted and excessive artificial light that brightens the night sky, causing problems for stargazing, wildlife, and sleep

toxic and harmful substances in the air that can cause illnesses

the poisoning of bodies of water caused by harmful materials

the stuff left over from factories and businesses that can harm the environment if not handled properly

a type of gas present in the sky that protects the life on earth from the harmful rays of the sun

things such as household materials that have no use anymore

worthless, unwanted, and unneeded things that people throw away

materials that have no use and are unwanted

electronic devices that are no longer functional, useful, or wanted