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POWER POINT PRESENTATION FOR GRADE 9 LEARNERS.pptx
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- 2. If you wouldchoose among the environmental concerns we experienced, what would you want to permanently erase, why?
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- 4. Environmental issues set ofchallenges and problems facing Earth and its natural systems.
- 5. Environmental issues wereresults from a combination of natural causes and human impact. While the Earth's ecosystems are designed to handle certain amounts of natural disturbances (such as forest fires and floods), HUMAN ACTIVITIES can create circumstances in which they happen with greater frequency or intensity.
- 6. What are themain types of environmental issues? Climate change Water pollution Loss of biodiversity Overpopulation Air pollution Energy use Ocean health Weather events
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- 8. Climate Change the long-termchanges in temperature, precipitation, and other weather patterns caused by human activities such as burning fossil fuels.
- 9. According to NASA,the Earth's average surface temperature has risen by about 1°C since the late 19th century.
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- 11. Loss of Biodiversity ■Biodiversityrefers to the variety of life on Earth, including animals, plants, and microorganisms. A loss of biodiversity can lead to species extinction, put food and water supplies at risk and reduce CARBON SEQUESTRATION ■According to the World Wildlife Fund, the Earth has lost 69% of its wildlife populations since 1970.
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- 13. Air Pollution Air pollutionrefers to the presence of harmful substances such as carbon dioxide, methane, and nitrogen dioxide in the air that people breathe.
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- 15. Water Pollution The presenceof the resulting bacteria and chemical concentrations in drinking water can cause digestive problems, neurological illnesses, skin infections and more.
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- 17. Overpopulation According to theUnited Nations, the world's population is expected to reach 9.7 billion by 2050. As the global population grows, so does demand for natural resources, as well as human impact on the environment.
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- 19. Energy Use Overall energyuse can have a major impact on the environment. Today, fossil fuels are the primary source of energy for most individuals, businesses, and industries. However, their combustion is a significant source of greenhouse gas emissions and may contribute to other environmental problems such as acid rain.
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- 21. Weather Events ■hurricanes, floods,wildfires, droughts, and snowstorms are becoming more frequent and severe due to climate change. ■Rising temperatures and rising sea levels, among other factors, contribute to the increase in extreme weather conditions.
Editor's Notes
- #4 As they affect the health of the natural world, environmental issues can have significant impacts on human health and well-being, as well as organizations and business operations.
- #5 Give examples of Man-made disaster Climate Change Waste disposal Burning of Fossil Fuel Land Conversion
- #11 (the natural process of removing carbon dioxide from the atmosphere, which is essential to reducing climate change).