Podcast
Questions and Answers
What primarily characterizes an environmental crisis?
What primarily characterizes an environmental crisis?
Which statement best describes the concept of sustainable development?
Which statement best describes the concept of sustainable development?
What is a main cause of flash floods?
What is a main cause of flash floods?
How does habitat destruction affect indigenous species?
How does habitat destruction affect indigenous species?
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Which of the following can notably contribute to habitat destruction?
Which of the following can notably contribute to habitat destruction?
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What is a primary consequence of air pollution as described in the content?
What is a primary consequence of air pollution as described in the content?
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Which of the following is NOT a factor contributing to water pollution?
Which of the following is NOT a factor contributing to water pollution?
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How do nitrogen oxides and sulphur oxides primarily enter the air as pollutants?
How do nitrogen oxides and sulphur oxides primarily enter the air as pollutants?
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What immediate effect does water pollution have on the environment?
What immediate effect does water pollution have on the environment?
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Which of the following best describes how changes in climate affect species adaptation?
Which of the following best describes how changes in climate affect species adaptation?
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Study Notes
Environmental Crisis & Sustainable Development
- Environmental crisis is characterized by rapid and unpredictable changes in the environment.
- These changes are often difficult to reverse and can include massive extinctions and ecosystem destruction.
Sustainable Development
- Sustainable development is a strategy that balances different needs (environmental, social, and economic).
- This strategy considers the limitations these needs impose on society.
Factors Affecting the Environment
- Flash flood: Rapid rising and overflowing of water onto normally dry land.
- Habitat destruction and extinction: Loss of habitats reduces carrying capacity for plants, animals, and other organisms, leading to population decline and potential extinction.
- Causes: Climate change and pollution
- Climate change can alter habitats, forcing species to adapt or migrate, potentially leading to extinction if species cannot adapt quickly enough or find new habitats.
- Pollution from toxic chemicals and heavy metals can impact species abundance and lead to extinction.
- Causes: Climate change and pollution
- Water pollution: Harmful substances (chemicals or microorganisms) contaminate water sources, degrading water quality and posing risks to human and environmental health.
- Air pollution: Contamination of air by chemicals, physical or biological agents modifying natural characteristics.
- Causes: Burning of fossil fuels releases nitrogen oxides and sulphur oxides becoming acid rain, damaging human, animal and plant life.
- Climate change: Long-term shifts in temperatures and weather patterns that can be natural (due to changes in the sun's activity or volcanic eruptions) or human-caused (consumption).
Flash Flood
- Flash floods occur when there is more rain than the drainage system can handle.
- Causes include heavy rain (short or prolonged periods) and deforestation.
- Deforestation removes trees that absorb water, increasing the flow of water downstream and potentially leading to flooding.
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