Final Exam Env100

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ENV100 Principles of Environmental Science
Final Exam –


1. The interdisciplinary study of humanity’s relationship with other organisms and the non-living physical environment is termed

a) ecology
b) sociology
c) political science
d) risk analysis
e) environmental science

2. What activity/activities contribute(s) to making the human species the most significant agent of environmental change on Earth? a) continued population growth
b) consuming non-renewable resources
c) eradicating unique species
d) ignoring the environment
e) All of the above

3. In order for a country to progress from a less developed country (LDC) to a moderately developed country (MDC), the country would have to a) increase rate of population growth.
b) move from industry to agricultural economy base.
c) raise the per-capita income.
d) maintain limited crop dependence.
e) All of the above.

4. The red patch on each of the trees shows where each type of warbler normally eats. This is an example of

a) commensalism
b) competitive exclusion
c) geographic isolation
d) resource partitioning

5. Which of the following is NOT important in determining the distribution of organisms in aquatic biomes? a) light penetration
b) mineral nutrient concentrations
c) precipitation
d) salinity
e) waves and currents

6. Wetlands and estuaries are highly productive and provide enough food to support a variety of organisms. Define an estuary and discuss TWO roles that coastal wetlands play that are ecologically important. Estuary is water that is surrounded by land, but is connected to oceans and rivers. Coastal wetlands provide an environment for wildlife. These wetlands also provide fresh water for the environment.

7. The maximum number of individuals of a given species that a particular environment can support for an indefinite period, assuming there are no changes in the environment is called its a) environmental resistance

b) intrinsic rate of increase
c) carrying capacity
d) sustainability
e) demography

8. What is the difference between a rock and an ore?
a) rocks have varied chemical composition; ores contain a large concentration of a particular mineral.
b) rocks contain only nonmetallic minerals; ores contain only metallic minerals. c) rocks are easily accessible and always non-profitable to extract; ores are inaccessible and always profitable to extract. d) rocks are not good conductors of heat and electricity; ores are good conductors of heat and electricity. e) rocks are only formed through sedimentation; ores are only formed through hydrothermal processes.

9. Identify the major components of soil and discuss the role of each in the support of living organisms. Soil is the upper crust of the Earth’s crust. Soil is made up of minerals, water, and animal feces, remains of plants and animals, and dead leaves from trees. It provides homes for organisms (plants and animals). The organisms use the soil for a home and food. The organisms die and give nutrients to the soil and the nutrient grows food for the animals.

10. Which of the following is not a disadvantage to using biomass as a source of energy? a) deforestation
b) air pollution
c) depletion of minerals in the soil
d) increased possibility of erosion
e) nonrenewable source of energy

11. Identify the major ways that the burning of coal impact the environment, and suggest one method for minimizing each type of impact. Burning coal produces air pollutants into the environment.

12. Thermal inversions:
a) can cause polluting gases and particulate matter to remain trapped near the ground for days. b) occur when topography causes air to be trapped in valleys or basins surrounded by mountains. c) occur when air a layer of cold air is temporarily trapped near the ground by a warmer, upper layer d) can cause pollution levels to rise to dangerous levels.

e) all of the above

13. The two main human sources of primary air pollutants are:...
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