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PRINCIPLES OF ENVIRONMENTAL SCIENCE EXAM #2 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024 £16.70
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PRINCIPLES OF ENVIRONMENTAL SCIENCE EXAM #2 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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PRINCIPLES OF ENVIRONMENTAL SCIENCE EXAM #2 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024 Closed-canopy forest - ANSWER where tree crowns cover most of the ground Old-growth forest - ANSWER where forests cover large areas and have been undisturbed by human activity long enough for the trees to go t...

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  • October 16, 2024
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  • 2024/2025
  • Exam (elaborations)
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PRINCIPLES OF ENVIRONMENTAL SCIENCE
EXAM #2 QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
Closed-canopy forest - ANSWER where tree crowns cover most of the ground



Old-growth forest - ANSWER where forests cover large areas and have been undisturbed by human
activity long enough for the trees to go through natural life cycles and ecological processes can occur in a
fairly normal in fashion



What continent is experiencing the greatest forest losses? - ANSWER Africa is experiencing the greatest
forest losses due to deforestation.



What is REDD, and how might it work? - ANSWER REDD is the acronym for Reducing Emissions from
Deforestation and Degradation of forests. It works by setting goals to slow climate change by paying
countries to stop cutting down forests.



Why is fire suppression a controversial strategy? - ANSWER Many communities are fire adapted and
require periodic burning for regeneration. The small fires being taken out of the equation allow for
debris buildup that can fuel a great harmful fire.



What portion of the United States' public rangelands are in poor or very poor condition due to
overgrazing? Why do some groups say grazing fees amount to a "hidden subsidy"? - ANSWER 55% of
public rangelands are in poor or very poor conditions. The federal grazing fees for public use of lands are
fa below market value causing a 36 million dollar subsidy many are unaware of.



What is rotational grazing, and how does it mimic natural processes? - ANSWER A rotations grazing is the
practice of confining animals to a small aerator a short time before shifting them which simulates the
natural habits of a herd.



What percentage of the earth's land area has some sort of protected status? - ANSWER 13% of the land
area od earth is protected in a way of preserves, parks, or wildlife management.

, How has the amount of protected areas changed globally? - ANSWER Venezuela claims the highest
proportions of protected areas, but has low management making it hard to adequately enforce
protection while the US has 22% and has many workers, regulations, and budget expenses to preserve
areas.



What is ecotourism, and why is it important? - ANSWER Ecotourism is the tourism that is ecologically
and socially sustainable and can give lower income countries a lifeline through tourism and save areas
from extraction processes because of its value as a preserve.



What is a biosphere reserve, and how does it differ from a wilderness area or wildlife preserve? -
ANSWER Biosphere reserves are those that have protected areas divided into zones with different
purposes. There is a core area with critical ecosystem functions and endangered wildlife with limitations
of scientific study and human interaction, research facilities are located around the core in buffer zones,
and sustainable resource harvesting and permanent habitation are allowed in peripheral areas.



What does it mean to be chronically undernourished? How many people in the world currently suffer
from this condition? - ANSWER 900 million people suffer from the affliction of constant malnutrition and
mostly in underdeveloped countries.



Why do nutritionists worry about food security? Who is most likely to suffer from food insecurity? -
ANSWER food security is the ability to have healthy nourishing food, and if they do not they can be
malnourished and unhealthy which means they are unable to work their way out of poverty.



Describe the conditions that constitute a famine. Why does Amartya Sen say that famines are caused
more by politics and economics than by natural disasters? - ANSWER a large scale food shortage with
wide spread starvation and social disruption often triggered by natural disasters or political strife such as
wars and displacement.



Malnutrition - ANSWER lack of proper nutrition caused by not having enough to eat, not eating enough
of the right things or being unable to use the food that one does eat



Obesity - ANSWER having too much body fat, it is different from being overweight which means weighing
too much

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