ECOLOGY
BIODIVERSITY AND ITS CONSERVATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Water pollution in the Antarctic Ocean
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Ozone depletion in the stratosphere
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Increased immigration of Asian people into Australia
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The occurrence of a solar maximum
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Detailed explanation-1: -Skin cancers (including both melanomas and non-melanomas) result from skin damage by ultraviolet radiation (UVR), which accounts for at least 95% of all skin cancers in Australia. Australia experiences high levels of UVR, resulting from the reduction in their ozone layer since the 1970s.
Detailed explanation-2: -Ultraviolet radiation in Australia As the ozone layer depletes, the atmosphere loses its protective filter and more of the dangerous UV radiation reaches the surface of our planet. This depletion is directly related to the growing number of skin cancer cases.
Detailed explanation-3: -Ozone depletion increases the biologically harmful solar ultraviolet radiation reaching the surface of the Earth, which leads to a variety of adverse effects, including an increase in the incidence of skin cancer.
Detailed explanation-4: -Australia has one of the highest rates of skin cancer in the world. This is due largely to our climate, the fact that many of us have fair skin that isn’t really suited to such harsh conditions, our proximity to the equator (high UV levels) and our social attitudes and love for the outdoors.
Detailed explanation-5: -Ozone Layer Hole is Healing, But Australian Wildfires Threaten Progress. While the ozone layer hole is healing and on the path to recovery by 2060, currently measuring about 7.6 million square miles, wildfire smoke from Australia’s Black Summer has destroyed 1% of the ozone layer, a recent assessment found.