https://youtu.be/608jtFv93q0 Haze has becoming a frequent occurrence in Singapore, due to Indonesian forest fires that happens annually. The effects of haze can be local (affect…
https://youtu.be/P7CP48xHC3o Here’s the composition of our air; nitrogen gas (78%) being the most abundant, followed by oxygen (21%) and argon, water vapor, carbon dioxide make…