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Environmental Science Unit 1 - 2024 Questions and Answers Latest (2024 / 2025) (Verified Answers)
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Environmental Science Unit 1 - 2024 Questions and Answers Latest (2024 / 2025) (Verified Answers)
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Environmental Science Unit 1.pdf file:///C:/Users/HP/Desktop/New%20folder%20(2)/Environmental%2Environmental Science Unit 1
1. Environmental Science: The study of how humans interact with the environ-
ment.
2. 3 Main Issues studied in Enviro. Science: (1) Resource depletion, (2) Pollution,
and (3) Loss of Biodiversity.
3. Resource depletion: Using up large portions of resources; renewable resources
(replaced quickly naturally: trees, water, air, soil, crops), and non-renewable re-
sources (replaced slowly : minerals, fossil fuels).
4. Pollution: Undesired change in air, water, or soil that negatively affects health,
survival, activities); biodegradable (broken down by natural processes, problematic
only when accumulate too fast), and non-degradable (not broken down, or not
broken down easily).
5. Loss of Biodiversity: Decrease in number and variety of species in an area;
unknown how current extinction rates compare with historical rates and since all
organisms are interconnected by food webs, this may cause unforeseen problems.
6. Biodiversity: The diversity of plant and animal life in a particular habitat (or in the
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,Environmental Science Unit 1.pdf file:///C:/Users/HP/Desktop/New%20folder%20(2)/Environmental%2
world as a whole).
7. Sustainability: The condition in which humans and environmental needs are met
that help both survive in the present and the future.
8. Natural Resource: Materials found in nature that are used by living things.
9. Renewable Resource: A natural resource that can be replaced at the same rate at
which the resource is consumed.
10. Non-renewable Resource: A resource that cannot be reused or replaced easily.
11. Ecological Footprint: A way of measuring how much of an impact a person or
community has on the earth.
12. Pollution: Release of harmful materials into the environment.
13. Tragedy of the Commons: When everyone is responsible for taking care of an
area, no one does. "Someone else will do it", then it continues until collapse, and the
best long-term solution may be negative for individuals short-term.
14. Hunter-Gatherer (effect on people and environment): Small groups that mi-
grated to forage/hunt food caused: over-hunting; forced grasslands; burned prairies to
prevent the growth of trees (to see food); spread of seeds during migration; little
pollution and waste.
15. Agricultural Revolution (effect on people and environment): Growing,
breeding plants and animals for use caused:an increased population size & concen-
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