For decades, Antarctica has been a place of intense scientific research. Various countries have established their bases in Antarctica to study the impact of climate change. The ozone hole was discovered in 1985 in Antarctica. Which of the following can be associated with ozone hole?
For decades, Antarctica has been a place of intense scientific research. Various countries have established their bases in Antarctica to study the impact of climate change. The ozone hole was discovered in 1985 in Antarctica. Which of the following can be associated with ozone hole?
The correct options are
A True
C If ozone hole appears in tropical and temperate regions, it could cause a series of health problems.
Ozone hole region in Antarctica is due to thinning of the stratospheric ozone layer. Ozone hole is caused by increasing concentrations of ozone-depleting chemicals in the stratosphere that come from spray cans, refrigerants, air-conditioners (modern technology). These long-lived chlorofluorocarbons or CFCs (chemical compounds with chlorine and/or fluorine attached to carbon) remain in the atmosphere for decades to over a century depending on the CFC. At the pole, CFCs attach to ice particles. When the sun comes out again in the polar spring, the ice particles melt, releasing the ozone-depleting molecules. Once released, they break apart the molecular bonds in ozone. In the absence of ozone layer, there is a direct exposure to ultraviolet rays of the sun which can cause a variety of health-related issues such as cancer, mutations, etc.
A
True
C If ozone hole appears in tropical and temperate regions, it could cause a series of health problems.
Ozone hole region in Antarctica is due to thinning of the stratospheric ozone layer. Ozone hole is caused by increasing concentrations of ozone-depleting chemicals in the stratosphere that come from spray cans, refrigerants, air-conditioners (modern technology). These long-lived chlorofluorocarbons or CFCs (chemical compounds with chlorine and/or fluorine attached to carbon) remain in the atmosphere for decades to over a century depending on the CFC. At the pole, CFCs attach to ice particles. When the sun comes out again in the polar spring, the ice particles melt, releasing the ozone-depleting molecules. Once released, they break apart the molecular bonds in ozone. In the absence of ozone layer, there is a direct exposure to ultraviolet rays of the sun which can cause a variety of health-related issues such as cancer, mutations, etc.
