Human Effect On The Environment Exam Questions All Answered.
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Human Impact on the Environment
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Human Impact On The Environment
the ways humans effect the environment - Answer Humans impact the environment in several ways. Common effects include decreased water quality, increased pollution and greenhouse gas emissions, depletion of natural resources and contribution to global climate change.
overpopulation - Answer ...
Human Effect On The Environment
Exam Questions All Answered.
the ways humans effect the environment - Answer Humans impact the environment in several ways.
Common effects include decreased water quality, increased pollution and greenhouse gas emissions,
depletion of natural resources and contribution to global climate change.
overpopulation - Answer Overpopulation
Survival used to mean repopulating. That however, is quickly becoming true for the opposite as we reach
the maximum carrying capacity that our planet can sustain. Overpopulation has grown into an epidemic
since mortality rates have decreased, medicine has improved, and methods of industrial farming were
introduced, thus keeping humans alive for much longer and increasing the total population. The effects
of overpopulation are quite severe, with one of the most severe being the degradation of the
environment. Humans require space, and lots of it whether it is for farmland, or industries which also
takes up tons of space. An increased population results in more clear-cutting, resulting in severely
damaged ecosystems. Without enough trees to filter the air, CO₂ levels increase which carries the
potential to damage every single organism on Earth. Another issue is our dependency on coal and fossil
fuels for energy, the larger the population, the more fossil fuels will be used. The use of fossil fuels (such
as oil and coal) results in copious amounts of carbon dioxide into the air- threatening the extinction of
thousands of species which adds to the effect that forest depletion already has. Humanity continuously
requires more space, which devastates ecosystems and increases CO₂ levels, further devastating the
delicate environment. The planet can only sustain so much damage until it will begin to damage us.
pollution - Answer Pollution
Pollution is everywhere. From the trash thrown out on the freeway, to the millions of metric tons of
pollution pumped into the atmosphere every year- it's obvious, pollution is inescapable. Pollution is so
bad that to date, 2.4 billion people do not have access to clean water sources. Humanity is continuously
polluting indispensable resources like air, water, and soil which requires millions of years to replenish. Air
is arguably the most polluted with the US producing 147 million metric tons of air pollution each year
alone. In 1950, smog was so bad in LA that the ground level ozone (which is great in the atmosphere, not
so much on the ground) surpassed 500 parts per billion volume (ppbv)- well above the National Ambient
Air Quality Standard of 75 ppbv. People thought they were under foreign attack as the smog burned their
eyes and left an odor of bleach in the air. That is when the devastating effect of aerosols was discovered.
While air quality in the US has slightly improved, the quality in developing countries continues to
plummet as smog continuously blocks out the sun in a dense shroud of pollution.
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