Podcast
Questions and Answers
Why is deforestation a significant environmental concern?
Why is deforestation a significant environmental concern?
- It improves soil quality by adding more nutrients to the ground.
- It disrupts the water cycle and causes habitat loss for plants and animals. (correct)
- It leads to an increase in the population of forest animals.
- It enhances the process of photosynthesis, reducing carbon dioxide levels.
Which of the following practices contributes most significantly to soil erosion?
Which of the following practices contributes most significantly to soil erosion?
- Using organic fertilizers in agriculture.
- Replanting trees after deforestation.
- Implementing water conservation techniques.
- Leaving land barren after harvesting crops. (correct)
How does overexploitation of renewable resources impact the environment?
How does overexploitation of renewable resources impact the environment?
- It has no significant impact as these resources are naturally replenished.
- It can lead to a decrease in the numbers of these resources and potentially extinction. (correct)
- It accelerates the replenishment process of these resources.
- It increases the biodiversity of ecosystems.
What defines a non-renewable resource?
What defines a non-renewable resource?
Which of the following is the most direct example of sustainable resource use?
Which of the following is the most direct example of sustainable resource use?
How does population growth primarily affect resource availability?
How does population growth primarily affect resource availability?
What is the primary implication of a large ecological footprint?
What is the primary implication of a large ecological footprint?
In the Caribbean, what is the predominant source of energy that fulfills most energy needs?
In the Caribbean, what is the predominant source of energy that fulfills most energy needs?
Which action would be least effective in reducing your ecological footprint?
Which action would be least effective in reducing your ecological footprint?
What is the environmental consequence of using chemical fertilizers instead of organic fertilizers?
What is the environmental consequence of using chemical fertilizers instead of organic fertilizers?
Flashcards
What is a Resource?
What is a Resource?
Something valuable or useful to humans, can be natural or man-made.
Renewable Resources
Renewable Resources
Resources that can be replenished by natural processes within a human lifetime; examples include sunlight, water, wind, trees, soil, and biomass.
Deforestation
Deforestation
The removal of large areas of forests for housing, agriculture, building materials, and fuel.
Soil Erosion
Soil Erosion
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Non-renewable Resources
Non-renewable Resources
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Sustainable Resource Use
Sustainable Resource Use
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Ecological Footprint
Ecological Footprint
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Study Notes
- A resource is valuable or useful to humans.
- Resources are natural or man-made.
Natural Resources
- These come from the environment.
- Examples are food, fuel, fiber, shelter, minerals, and soil.
- They can be renewable or nonrenewable.
Renewable Resources
- These can be replenished by natural processes.
- Examples include sunlight, water, wind, trees, soil, and biomass.
- Many natural resources fall under this category.
- Overexploitation can lead to decreased numbers and potentially extinction of species.
- Overfishing of marine organisms like lobsters, whales, and turtles is an example.
- Over-hunting of terrestrial organisms is also a concern.
Deforestation
- This is the removal of large forest areas for housing, agriculture, building materials, paper, and fuel.
- Results in habitat loss for plants and animals.
- Reduced photosynthesis leads to increased carbon dioxide levels.
- Disrupts the water cycle.
- Causes soil erosion because there are fewer leaves to intercept rainwater, and fewer roots to hold the soil.
Soil Erosion
- This process involves the wearing away of the topsoil layer.
- Reasons for this can include cutting down trees without replanting.
- Bad agricultural practices, such as leaving land barren, overgrazing, and using chemical fertilizers, also leads to this.
- Leads to a decrease in the number and quantity of trees and crops that can be grown.
Non-Renewable Resources
- These cannot be replenished within a lifetime.
- They are finite.
- Energy resources like fossil fuels (crude oil, coal, and natural gas) and radioactive fuels (e.g., uranium) are examples.
- Mineral resources like iron ore, bauxite (aluminum ore), copper, and tin are also included.
Resource Use
- Most energy needs in the Caribbean are met by burning fossil fuels.
- Population growth increases the demand for resources.
- Modern lifestyles require more finite resources
- Using resources must be done in a sustainable way to ensure future generations have access.
Ecological Footprint
- This measures the amount of Earth’s resources each person uses based on their lifestyle.
Sustainable Use of Natural Resources
- Use metal utensils instead of single-use plastics.
- Only use washers on full loads to conserve water.
- Switch off lights and electronics when not in use.
- Recycle plastic bottles and empty cans.
- Use renewable energy instead of fossil fuels.
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