Pollutants & their effects on Environment | Oxford Secondary Science | eLearn K12

Environmental pollution is currently the biggest challenge facing the word today.
In the United States 40% of rivers and 46% of lakes are too polluted for fishing, swimming, and aquatic life. Not surprising though when 1.2 trillion gallons of untreated storm water, industrial waste, and untreated sewage are being discharge annually into American waters.
One-third of the topsoil in the world is already degraded, and with the current rate of soil degradation caused be improper agricultural and industrial practices, and deforestation, most of the world’s topsoil could be gone within the next 60 years.
The Great Smog in 1952 killed 8000 people in London.

Access eLearn Digital content/ videos on mobile Download eLearn App from Google play store.
Android App:


For More Information:
Website:


Web App:


E-MAIL:
elearn@punjab.gov.pk

eLearn is the official repository of digitized textbooks of Punjab. Each book has been augmented with Video Lectures, Illustrations, Animations, Simulations, and Interactive Assessments. Through this website, you can access Science and Maths textbooks for Grade 1-12. eLearn is a project of School Education Department which is executed by the Punjab Information Technology Board.
#eLearnK12 #Science #Effects_of_Pollutants

Animated videos,elearn k12,k-12,oxford,IGCS,GCS,AP oxford,Science,human activities,aerosols,fertilizer,inseticides,pesticides,envirnoment,deforestations,atmosphere,dust strom,poisonous,burning of fuels,industry,air pollutants.,high school,oxford science,secondary science,