|
Title: Which of the following is true about pollution in the US? Post by: kdowney on Feb 10, 2019 The average levels of lead in the blood of children have declined by 90%.
Acid deposition has increased by 27%. Total emissions of five principal air pollutants have increased by 14%. The release of toxic chemicals has increased by 19%. Title: Re: Which of the following is true about pollution in the US? Post by: bio_man on Feb 11, 2019 https://biology-forums.com/index.php?topic=1887786.0
|