Ozone layer depletion causes increased UV radiation levels at the Earth’s surface, which is damaging to human health. Negative effects include increases in certain types of skin cancers, eye cataracts and immune deficiency disorders.
What effect does ozone depletion have on environment?
The ozone layer acts as a natural filter, absorbing most of the sun’s burning ultraviolet ( UV ) rays. Stratospheric ozone depletion leads to an increase in UV -B that reach the earth’s surface, where it can disrupt biological processes and damage a number of materials.
What are the four effects of ozone depletion?
Effects Of Ozone Layer Depletion Studies demonstrate that an increase in UV-B rays causes a higher risk of skin cancer, plays a major role in malignant melanoma development, sunburns, quick ageing, eye cataracts, blindness and weekend immune system.
What are the main causes and effects of ozone layer depletion?
Chlorofluorocarbons or CFCs are the main cause of ozone layer depletion. These are released by solvents, spray aerosols, refrigerators, air-conditioners, etc. The molecules of chlorofluorocarbons in the stratosphere are broken down by the ultraviolet radiations and release chlorine atoms.
Does depletion of ozone layer causes global warming?
Ozone (O3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.
How does the ozone layer affect climate change?
Atmospheric ozone has two effects on the temperature balance of the Earth. It absorbs solar ultraviolet radiation, which heats the stratosphere. It also absorbs infrared radiation emitted by the Earth’s surface, effectively trapping heat in the troposphere.
What are the consequences of ozone layer depletion Class 10?
Once the ozone layer is depleted, ultraviolet rays will pass through the troposphere and eventually to earth. These rays cause ageing of the skin, skin cancer, cataract and sunburn to humans as well as animals. Phytoplankton dies in the presence of ultraviolet rays which results in a decrease in fish productivity.
What is effect of ozone?
High ozone levels affect children, people with lung disease, and people who are active outdoors. Numerous scientific studies have linked ozone exposure to a variety of health problems, including: airway irritation, coughing, and pain when taking a deep breath; permanent lung damage with repeated exposures.
What human activities affect the ozone layer?
Fossil fuels destroy the ozone layer. The three major forms of fossil fuels are oil, natural gas, coal. Fossil fuels are used in cars, factories, and for electricity. These fuels are called fossil fuels because fossil fuels have been formed from the organic remains of prehistoric plants and animals.
What is the harm from the depletion of Earth’s ozone layer Mcq?
Increased amount of ultraviolet radiation will reach the Earth’s surface.
