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Welcome to Shah Knowledge Bank! In this session, we will cover Environmental Pollution, its causes and effects, and important concepts like Ozone Layer Depletion and the Greenhouse Effect—crucial topics for competitive exams like JKPSC, JKSSB, and others.
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1. Environmental Pollution
• Definition: The introduction of harmful substances into the environment, causing adverse effects on living organisms and ecosystems.
• Types of Pollution:
• Air Pollution: Emissions from vehicles, industries, and deforestation lead to problems like smog and respiratory diseases.
• Water Pollution: Industrial waste, agricultural runoff, and sewage contaminating water bodies.
• Soil Pollution: Excessive use of pesticides, fertilizers, and improper disposal of waste.
• Noise Pollution: Loud noises from transportation, industries, and urbanization.
• Effects: Impacts health, biodiversity, and natural resources.
2. Ozone Layer and Its Depletion
• Ozone Layer: A protective layer in the stratosphere that absorbs harmful UV radiation from the sun.
• Depletion Causes:
• Use of Chlorofluorocarbons (CFCs) in refrigerants, aerosols, and solvents.
• Release of halons and nitrous oxides.
• Effects of Ozone Depletion:
• Increased UV exposure leading to skin cancer, cataracts, and immune suppression.
• Harm to crops, marine life, and ecosystems.
• International Efforts:
• Montreal Protocol (1987): A global agreement to phase out ozone-depleting substances.
3. Greenhouse Effect and Global Warming
• Greenhouse Effect: The trapping of heat in the Earth’s atmosphere by gases like CO2, methane, and water vapor, which keeps the planet warm.
• Global Warming: Excessive trapping of heat due to increased greenhouse gas emissions, leading to a rise in Earth’s temperature.
• Causes:
• Burning of fossil fuels, deforestation, and industrial activities.
• Effects:
• Melting glaciers, rising sea levels, extreme weather events, and loss of biodiversity.
• Solutions:
• Transition to renewable energy, afforestation, and energy-efficient technologies.
Why is This Important for Exams?
• These topics are frequently asked in General Science sections for JKPSC, JKSSB, and other competitive exams. Questions may focus on definitions, causes, effects, and international measures.
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Consultant Respiratory Physician Dr Annette McWilliams, discusses the impact tobacco has on people’s lung health, from infection to chronic respiratory disease.
For ways to quit smoking visit: https://makesmokinghistory.org.au/im-ready-to-quit/ways-to-quit/
For more information about lung health and tobacco smoke visit:
https://makesmokinghistory.org.au/news/smoking-hurts-your-lungs-in-more-ways-than-one
Connect with Make Smoking History at:
https://makesmokinghistory.org.au/
https://www.facebook.com/MakeSmokingHistoryWA/
https://makesmokinghistory.org.au/more-information/blog
Tweets by msh_wa
TRANSCRIPT
“Adult long-term exposure to tobacco smoke and this is both active smoking and second-hand exposure, can cause loss of taste, chronic rhinosinusitis, in your nose and your sinuses, you can get chronic bronchitis and inflammation in the airways and the little tiny airways as well, with increased mucus production and reduction of the ability of your lungs to fight off infection.
Our lungs are one of our first defences against the world. We breathe in viruses, bacteria, and substances all the time and our lungs have very good defence mechanisms about fighting off viruses and bacteria but in people who smoke tobacco or who are exposed to significant tobacco smoke, have a reduction in their ability to fight off infections.
We know that people who are exposed, get more infections, they get more viral infections, they get more severe viral infections both colds and influenza, they get more pneumonia and significant bacterial and unusual infections and that’s a real problem, you can imagine in children how this can really affect their health.
In addition people with underlying airways disease like asthma, which is one in 10 adult Australians, or other lung conditions like bronchiectasis, it makes the airways disease worse so it’s hard to control their asthma, it’s harder to to stay well and keep their lung health well maintained and then we know that one of the big long-term effects on lung health is the development of chronic obstructive pulmonary disease, which is what many people talk about is emphysema.
There’s both destruction of the little tiny air sacs in the lung and also permanent narrowing of the tubes, and COPD as doctors call it or Chronic Obstructive Pulmonary Disease, is the fourth biggest cause of death in Australia and causes terrible disability and shortening of life, it’s a really awful disease and I have so many patients suffering from it in hospital and it really affects many people in our community. In addition it can also cause more fibrotic changes in the lungs and all that chronic inflammation can lead to malignancy or cancer development as well.”
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https://www.etsy.com/shop/TheUniverseReflected
Saskia explains how to use Ivermectin, the form it comes in, the dosage and frequency of application for your guinea pigs.
Explained here as well in writing https://www.laguineapigrescue.com/ivermectin.html
+ I have an Etsy Crystal Shop!! Take a peek https://theuniversereflected.etsy.com
+ Donate – https://www.laguineapigrescue.com/donate.html
+ Shop in our super fun store! https://www.laguineapigrescue.com/store
+ List of ACTUAL items we use https://www.amazon.com/shop/losangelesguineapigrescue
+ Start your Amazon shopping through this link smile.amazon.com/ch/27-1292225
+ Wish list – https://www.amazon.com/registry/wishlist/MRE8VDQV7URK
+ Link to the store as well as the PAIN RELIEF cream gel pen Saskia uses in her videos https://www.laguineapigrescue.com/store
+ MY Facebook Group! Ask questions through the Wheekers Group run by me !! https://www.facebook.com/groups/137047001051961
+ Lots of GP stuff we sell here as well https://www.etsy.com/shop/GuineaPigFunStuff
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