found as a layer in the upper atmosphere, and close to the ground Pesticide - Substance for destroying insects or other pests Plankton - Microscopic life-forms found in oceans POPs - Persistent Organic Pollutants chemicals that pollute the environment and are especially harmful as they stay around for a long time Poverty - Living on less than one US dollar per day.
(they; stay; around; T:for a long time) (POPs - Persistent Organic Pollutants chemicals; pollute; the environment)
they POPs - Persistent Organic Pollutants chemicals
stay pollute
around T:for a long time
the environment