save our earth!

davidche SG

I really think its time to worry about our earth's environment.

just a small point out of the various kinds of pollutants.

CFC is emited everyday from aircons and refridgerators(which everyone uses!!)

this causes a serious greenhouse effect. One CFC molecule can trap as mush as 10000molecules of carbon dioxide causing the earth going to be veryhot. And to make things worst, it can remain in the atmostphere from 1century to 20000years!!!So it basically builds up year by year you know!!!

and seriously, the only good human is a dead one, can act as a fertilliser for plants. Very Happy

alexkusu SG

Let me page Captain Planet

alexkusu SG

Uh-oh, Captain Planet is not responding

Neutral

charlize SG

No need to worry about CFCs destroying the earth.

Nuclear weapons will destroy us long before that happens. Laughing

OasisBlue SG

wah today i had geog on this u noe Laughing u r repeating my lesson...

cfc, halons , trichlorothane,tetrachloride are some harmful gas...cfc can be found in aerosol cans, air cons and refrigerators. cfc contains chlorine...it causes harm when it reaches the earth's upper atmosphere... thus ozone depletion is caused. ozone depletion can cause eye cataracts, skin cancers, kill planktons which r the basic food for sea creatures and even slow down plant growth thus delaying our crop yield. Laughing

davidche SG

wad age r u?? wad textbook r u using?? lol!!

OasisBlue SG

but wad i learn one chlorine molecules can trap 100 000 oxygen atoms… aiya forgot lol

OasisBlue SG

sec 2 lol! erm geog interactive

davidche SG

oh no!! im also sec 2!!!!!!!!!!!!!!!!!!!!!!!!!

MooKu SG

Oh no. Neutral

So is it 10,000 or 100,000? Can our darling Sec 2s make up their minds? Razz

charlize SG

Knn, sec 2 worry so much for fcuk?

Don't you all have more important things to worry about like whether your Singapore Idol contestant will last the next round or not? Laughing

davidche SG

carbon + oxygen2 = carbon dioxide

so it square root 100000 = 10,000

OasisBlue SG

*tml check tb again* lol btw i dun watch singapore idol Very Happy

OasisBlue SG

actually we have finished the whole tb... lol just revising Laughing

<Precious> SG

Mebbe we shood all try to fart less lor Mr. Green

davidche SG

you have a point. Methane is also one of the increasing greenhouse gases.

The increasing number of cows leads to increasing numbers of belch and methane

charlize SG

Unless you want to work in Green Peace next time when you grow up, knowing all this CFC shit is worthless. Laughing

MooKu SG

Got a problem with that? Mad

davidche SG

no offense but its really becos of ppl like you that makes this earth more polluted.
And yes, the tb is full of BS. I sudy it so that i can have good grades. Very Happy

alexkusu SG

stuff a cork into those cows!

some governments are proposing a cow-fart tax