ozone hole造句
Even the polar ozone hole.
The size and shape of the ozone hole is shown in 2009.
The right image shows the concentration of chlorine monoxide, which is concentrated over the Arctic where the ozone hole developed.
We reversed our first man-made global atmospheric crisis by banning chlorofluorocarbons -- by 2015, the Antarctic ozone hole will have shrunk by nearly 400, 000 square miles.
Butbecause the the CFC gasses that caused the ozone hole now been banned, scientists expect the damage to repair itself within the next 50-60years.
You take a spray canister of refrigerant, R-12 if you can still get it, what with the ozone hole and everything, or R-134a, and you spray it into the lock cylinder until the works are frozen.
Nacreous clouds- also known as polar stratospheric clouds- contribute to the formation of the polar ozone holes.
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