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Human Impact on Ecosystems

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Updated 5 months ago

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Review: Describe Ocean Acidification
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Today we will explore how Humans impact the ecosystem.
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What is the human impact on ecosystems?
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Humans have altered our environment through activities like deforestation and urbanization. Pollution from industrial processes, vehicles and other sources can harm ecosystems. Changes to the environment can disrupt the balance of species within an ecosystem.
Human Impact on Ecosystems
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Habitat destruction: The destruction of an environment by human activity, such as through urban sprawl and pollution. Invasive species: A species that is not native to an ecosystem and can cause disruption or damage to the environment. Eutrophication: An increase in the concentration of chemical nutrients in an ecosystem, which can be caused by human activities such as fertilization and climate change.
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A recent study showed that only 3% of the world's oceans are undamaged by human impact. Human activities are the main cause of species extinction in the world. Each year, humans add more than 30 billion tons of carbon dioxide into the atmosphere.
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11. Personalised Feedback
360 seconds
Question: How have human activities altered the natural balance of an ecosystem? Clues: • Look at how human activities like cutting down forests, over-fishing and pollution affect the environment. • Explore the connections between ecosystems, the organisms that inhabit them and how they interact. • Think about the long-term effects of human activities on ecosystems. In pairs: Select and solve one of the tasks: A. Draw a diagram of an ecosystem and how human activities have changed it. (detailed before and after) OR B. Write a story about how human activities have impacted an ecosystem.
12. Poll
60 seconds
What is the primary cause of deforestation?
  • Agriculture
  • Urbanization
  • Mining
13. Poll
60 seconds
What type of pollution results from burning fossil fuels?
  • Soil pollution
  • Water pollution
  • Air pollution
14. Poll
60 seconds
Which human activity is responsible for the majority of plastic waste in the oceans?
  • Improper disposal of plastic products
  • Fishing
  • Oil spills
15. Poll
60 seconds
What is the impact of overfishing on marine ecosystems?
  • No impact on marine ecosystems
  • Decreased biodiversity and abundance of fish
  • Increased biodiversity and abundance of fish
16. Poll
60 seconds
Which human activity has resulted in a significant loss of habitat for many wildlife species?
  • Conservation efforts by humans to protect habitats that are threatened
  • Urban development and expansion
  • Natural disasters such as floods, landslides, and wildfires
17. Open question
180 seconds
Work together in pairs: What are two ways that humans can reduce their negative impact on ecosystems?

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