EHS midterm questions with verified solutions graded A+ passed
1. environmental health definition the collective interactions of
humans with
the environment and the short-
term and long-term health
consequences of those interactions
2. ecology vs environmental health - Environmental science seeks to
protect
both human beings and the
environment from negative factors
such as climate change and
pollution.
- Ecology is the specific study of
the rela- tionships between living
organisms: hu- mans and animals,
animals and plants, plants and
organisms.
3. the scientific method definition A logical, systematic approach to
the so-
lution of a scientific problem
4. Scientific Method Steps Question, Research, Hypothesis,
Exper-
iment, Analyze the Data,
Conclusion
5. biases in model experiments Single-blind
6. biases in natural experiments double-blind
7. Distinguish between a theory - theory can imply an explanation
and a scientific theory that represents an
unsubstantiated and speculative
guess
- in a scientific context it most
often refers to an explanation that
has already been tested and is
widely accepted as valid.
1/
23
, EHS midterm questions with verified solutions graded A+ passed
8. how statistics are used in EHS - Qualitative vs. Quantitative Data
- Random Chance vs. Results
Due to Experimental Treatment
9. First step in critical thinking Identify the problem
10. Define sustainable meeting the needs of the present
without compromising the ability
of future gener- ations to meet
their own needs
2/
23
, EHS midterm questions with verified solutions graded A+ passed
11. Define sustainable development Development that meets the needs
of the
present without compromising the
ability of future generations to
meet their own needs.
12. how to use of the shape of Exponential growth produces a
the current human population J-shaped curve, while logistic
growth curve to predict growth produces an S-shaped
popula- tion growth curve.
- Modern curve is J shaped
13. the global population 7 billion
14. Population of US 339 million
15. how to calculate doubling time 70/growth rate
16. How to Combine birth rate,
death rate, immigration, age, and
sex to characterize a population
17. calculate the rate of natural in- subtract the death rate (number of
crease deaths per 1,000 people/year)
from the birth rate (number of
birth per 1,000 peo- ple/year) and
convert the answer to a
percentage
18. high and low birth and death
rates Rates are given per 1,000 people in
the country's population. -
Countries above the gray line have
a higher birth than death rate,
meaning that the total popu- lation
is increasing
- those below the line have a
declining population.
19. high and low growth rates a measurement of how fast
3/
23
1. environmental health definition the collective interactions of
humans with
the environment and the short-
term and long-term health
consequences of those interactions
2. ecology vs environmental health - Environmental science seeks to
protect
both human beings and the
environment from negative factors
such as climate change and
pollution.
- Ecology is the specific study of
the rela- tionships between living
organisms: hu- mans and animals,
animals and plants, plants and
organisms.
3. the scientific method definition A logical, systematic approach to
the so-
lution of a scientific problem
4. Scientific Method Steps Question, Research, Hypothesis,
Exper-
iment, Analyze the Data,
Conclusion
5. biases in model experiments Single-blind
6. biases in natural experiments double-blind
7. Distinguish between a theory - theory can imply an explanation
and a scientific theory that represents an
unsubstantiated and speculative
guess
- in a scientific context it most
often refers to an explanation that
has already been tested and is
widely accepted as valid.
1/
23
, EHS midterm questions with verified solutions graded A+ passed
8. how statistics are used in EHS - Qualitative vs. Quantitative Data
- Random Chance vs. Results
Due to Experimental Treatment
9. First step in critical thinking Identify the problem
10. Define sustainable meeting the needs of the present
without compromising the ability
of future gener- ations to meet
their own needs
2/
23
, EHS midterm questions with verified solutions graded A+ passed
11. Define sustainable development Development that meets the needs
of the
present without compromising the
ability of future generations to
meet their own needs.
12. how to use of the shape of Exponential growth produces a
the current human population J-shaped curve, while logistic
growth curve to predict growth produces an S-shaped
popula- tion growth curve.
- Modern curve is J shaped
13. the global population 7 billion
14. Population of US 339 million
15. how to calculate doubling time 70/growth rate
16. How to Combine birth rate,
death rate, immigration, age, and
sex to characterize a population
17. calculate the rate of natural in- subtract the death rate (number of
crease deaths per 1,000 people/year)
from the birth rate (number of
birth per 1,000 peo- ple/year) and
convert the answer to a
percentage
18. high and low birth and death
rates Rates are given per 1,000 people in
the country's population. -
Countries above the gray line have
a higher birth than death rate,
meaning that the total popu- lation
is increasing
- those below the line have a
declining population.
19. high and low growth rates a measurement of how fast
3/
23
