SCI 256 Final Exam

SCI 256 Final Exam
1)
Given the uncertainties of scientific inquiry, use of the ____________ is
prudent to prevent irreversible Environmental harm.
2)
In an experiment, an inference becomes a testable _________ that if later not
disproved becomes an acceptable law.
3)
Which of the following groups provides the best example of three distinct
ecosystems?
4)
The water body in which a fish swims is contaminated with mercury. The fish
then ______________ the mercury. The fish is later caught by a human who eats
it; the mercury has then _____________ in the human.
5)
Which one of the following is a measure as to which energy is used?
6)
The organisms in a food web can be categorized into __________________.
7)
The _____________ is the time required for a population to double in size.
8)
The measure of the amount of oxygen consumed by microorganisms in water in a
fixed amount of time is_____________________.
9)
When there is high nutrient loading in a body of water, there is an algae
population boom, when this population crashes the decomposition of the algae
robs the water of oxygen. This entire process is called________________.
10)
_____________ is the propagation of fractures in a rock layer by pressurized
fluid to extract petroleum or natural gas. This can lead to ground water
contamination. Essay Questions: Answer the following questions with 100-200
word responses on your answer sheet (2 points each, partial credit is
available)
11)
Define 5 ways in which water use can be reduced in your home.
12)
Define Peak Oil. If the world reaches peak oil production what are possible
ramifications?
13)
List 3 negative environmental impacts of modern agricultural practices.
14)
Why is climate change an important environmental concern?
15)
Why is population growth an important environmental concern? True/False
Questions: Write out the entire word “true” or “false” on your answer sheet.
(0.5 point each.
16)
The Rain Forest is an important ecosystem because it provides a large carbon
sink, is the home to many species, and provides many resources important to
modern medicine.
17)
Humans are in the first trophic level.
18)
The nitrogen and phosphorus cycles are called biogeochemical cycles.
19)
Carbon Dioxide, Methane and Nitrous Oxide are greenhouse gases that contribute
to Global Climate Change.
20)
Drinking bottled water is always safer and healthier than drinking water from
the tap. r homework question here, such as “Help me understand this
chemistry problem…”