How we can reduce the excessive use of PFOA (C8)?

impressive

Please make pdf course

where i can get job from learning this

The course is showing 90 lessons but there are only 40 lessons,

It was a great lesson I learned from online platform. It was a good opportunity , I learned a lot of things and studies, it brings a change in my mindset. Thank you for this

Godd teaching methods...so you will be continued

Do not know

SUPERB

it is good practice keep it up