Environmental Science Test 20B
 
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Environmental Science Test 20B

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 
 
Section 1 – Pollution and Human Health
 

 1. 

Pollutants caused by poor sanitation that can lead to gastrointestinal infections include
a.
bacteria in food.
b.
pesticides in food.
c.
lead in water.
d.
All of the above
 

 2. 

All of the following are natural causes of pollution except
a.
dust storms.
b.
volcanoes.
c.
wildfires.
d.
vehicle exhaust.
 

 3. 

Air pollution is a major health problem caused by the burning of fuels in
a.
vehicles.
b.
home furnaces.
c.
power plants and factories.
d.
All of the above
 

 4. 

Much of the pollution in the environment is a result of
a.
the use of too much water.
b.
the use of landfills.
c.
inadequate waste disposal.
d.
inadequate pollution-control devices in industry.
 

 5. 

Most of the cases of organophosphate poisoning occur in people who are
a.
applying the chemical to crops.
b.
eating fruits and vegetables with chemical residues.
c.
inhaling the chemical while working in gas stations.
d.
working in factories with various chemicals.
 
 
Section 2 - Biological Hazards
 

 6. 

Pollution alters the environment, encouraging pathogens to breed. Which disease is caused indirectly by pollution?
a.
AIDS
b.
Ebola
c.
cholera
d.
influenza
 

 7. 

Most infectious diseases are transmitted through
a.
water.
b.
air.
c.
soil.
d.
people.
 

 8. 

What environmental change may increase the areas where malaria occurs?
a.
draining wetlands
b.
soil erosion
c.
destroying habitats
d.
climate change
 

 9. 

Which of the following is an environmental change that may result in more pathogens making a cross-species transfer to humans?
a.
polluting water
b.
soil erosion
c.
destroying habitats
d.
climate change
 

 10. 

Human immunodeficiency virus is considered an emerging virus because it
a.
had been controlled until recently.
b.
was previously unknown.
c.
developed from two other viruses.
d.
has become resistant to antibiotics.
 

Matching
 
 
Section 1 – Pollution and Human Health

Choose the letter of the term or phrase that best matches the description.
a.
toxicology
d.
particulate
b.
epidemiologist
e.
risk assessment
c.
dose
 

 11. 

Scientists use this to determine how to keep a disease from spreading.
 

 12. 

People breathe this into their lungs.
 

 13. 

A person is exposed to this amount of a chemical.
 

 14. 

Scientists use this to study the harmful effects of pollutants on organisms.
 

 15. 

Process used to estimate the harm that might be caused by a substance.
 
 
Section 2 - Biological Hazards

Choose the letter of the term or phrase that best matches the description.
a.
pathogen
d.
emerging virus
b.
host
e.
cross-species transfer
c.
vector
 

 16. 

organism in or on which a disease-causing organism lives
 

 17. 

previously unknown cause of disease
 

 18. 

transmits a disease-causing organism to people
 

 19. 

organism that causes disease
 

 20. 

movement from one kind of organism to another
 



 
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