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Questions and Answers
What is the primary cause of threat to biodiversity?
What is the primary source of everything humans need to survive and want?
What is the term used to describe the division of habitats into smaller patches, making it difficult for animals to access resources?
What is the result of habitat fragmentation?
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What is the main consequence of habitat fragmentation on species populations?
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What is the term used to describe the harvesting of resources at a rate faster than they can be replenished?
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What is a major consequence of human activities on the environment?
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Why do humans introduce invasive species to ecosystems?
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What is the purpose of wildlife corridors?
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What is a consequence of coal, oil, and natural gas extraction?
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What is the main goal of ecological conservation?
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What is the purpose of reforestation?
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What is the impact of human activities on coral reefs?
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What is the outcome of human activities on the natural balance of ecosystems?
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What is the term used to describe protected areas that allow marine creatures to recover from human impacts?
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Study Notes
Human Environmental Impacts
- Human activities are putting pressure on the Earth's resources and habitat, leading to starvation, loss of habitat, and extinction of non-human species.
- The Earth provides everything humans need to survive, including resources for food, shelter, and energy, but human consumption is depleting these resources.
- Human activities such as deforestation, mining, and pollution are causing habitat destruction and fragmentation, leading to loss of biodiversity and ecosystem disruption.
Habitat Loss and Fragmentation
- Habitat fragmentation occurs when human activities divide larger habitats into smaller, disconnected spaces, or eliminate them completely.
- Habitat loss and fragmentation are the biggest threats to biodiversity, causing animals to lose access to resources and increasing their risk of extinction.
- Fragmentation can occur in urban and rural areas, and is caused by activities such as logging, dam construction, and coastal development.
- It can lead to inbreeding, disease, and local extinction, and can have a ripple effect on entire ecosystems.
Overharvesting
- Humans consume more resources than they need, leading to overharvesting and depletion of plant and animal populations.
- Overharvesting is prevalent in industrialized countries, particularly in the oceans, where some species are being fished to near extinction.
- Clear-cutting forests and poaching are also forms of overharvesting, leading to the decline of species such as tigers, rhinoceroses, and elephants.
Ecological Conservation
- Ecological conservation can help counter human environmental impact through the use of wildlife corridors, strict poaching laws, and armed guards to protect imperiled species.
- Reforestation, ocean protection, and sanctuary zones can help restore habitats and prevent overfishing and pollution.
- Fish farms and urban gardens can help reduce the pressure on natural resources, and new technologies such as water permeable roadways can reduce waste and conserve water.
- Ecological conservation management and planning can help humans and nature coexist sustainably.
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Description
Learn about the impact of human activities on the environment and its consequences on other species. How do human needs and wants affect the planet and its inhabitants? Test your knowledge on human environmental impacts!
