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Test your basic knowledge |
DSST Environment And Humanity
Start Test
Study First
Subjects
:
dsst
,
science
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Different species living in close contact with each other.
Consumers
Montreal Protocol
Symbiosis
Trophic Level
2. Populations characterized by small size - short lifespan - and lots of offspring.
Kyoto Protocol
Copiotrophs
R-Selected Populations
Aldo Leopold
3. Forests found in the northern regions of North America - Europe - and Asia characterized by freezing winters and warmer summers. These forests lie just below the tree line.
Environmental Protection Agency
Copiotrophs
Environmental Ethics
Taiga
4. A shubland found primarily in the South-Western United States and Mexico. Fire plays a predominant role in the life-cycle of the plants in this area - the seeds of which will sprout only after a fire.
Community
Eukaryotes
Chaparral
Tundra
5. The loss of water vapor from leaves.
Detrivores
Toxic Substances Control Act
Population
Transpiration
6. The amount of variation among organisms living in a particular ecosystem. The loss of this key characteristic leads to a reduction in ecosystem efficiency and the ability of species to adapt to new situations.
Ecosystem
Biodiversity
Coevolution
National Environmental Policy Act
7. Modern man.
Hydrosphere
Homo Sapiens
Biogeochemical Cycle
Economic Threshold
8. A layer of gasses surrounding the earth.
Tropopause
Precipitation
Atmosphere
Population
9. A transitional area between two different ecosystems.
Ecotone
Sublimation
Trophic Level
Toxic Substances Control Act
10. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Consumers
Tropopause
Prokaryotes
Eutrophication
11. The uppermost atmospheric layer. Here satellites orbit the earth.
Non-government Organizations
Exosphere
Kyoto Protocol
Tundra
12. All members of a species which live in the same area.
Population
Antarctica
Ammonification
K-Selected Populations
13. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Clean Air Act
Stockholm Conference
Keystone Species
Nitrous Oxide
14. Average expected birth rate for 1 -000 women.
Interplanting
Total Fertility Rate
Montreal Protocol
Biosphere
15. The infiltration of harmful chemicals - particles - or biological matter into the atmosphere which endanger living organisms. Pollutants include sulfur and nitrogen oxides - ammonia - and chlorofluorocarbons. Although there are natural sources for th
Tropopause
Evapotranspiration
Air Pollution
Oligotrophs
16. A type of symbiosis where one species will benefit while the other will be neither benefit or be harmed.
Water Pollution Control Act
Commensalism
Biomes
Speciation
17. The coexistence of two species using the same resource where the two will use the resource in different ways.
Sublimation
Community
Resource Partitioning
Stockholm Conference
18. Integrating rows of trees alongside crops to provide mulch and shade - retain water in the soil - and promote sustainable land use.
Intensive Subsistence Farming
Agroforestry
Carbon Dioxide
Aldo Leopold
19. Plants taking in nitrates from the soil.
Omnivores
Assimilation
Deserts
Keystone Species
20. The cloudiness of a liquid due to small suspended particles.
Safe Drinking Water Act
Silent Spring
Organism
Turbidity
21. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Total Fertility Rate
Stratosphere
Australopithecus Afarensis
Biodiversity
22. A group of similar organisms capable of interbreeding.
Species
Grasslands
National Environmental Policy Act
Ecotone
23. An extinct hominid species with near the same brain capacity as modern man believed to use fire and stone tools - live a hunter/gatherer lifestyle - and speak a language.
Ecological Niche
Homo Erectus
Air Pollution
Sahelanthropus Tchadensis
24. Organisms which thrive in low nutrient environments and usually have slow growth rates.
Copiotrophs
Oligotrophs
Clean Air Act
Hetrotrophs
25. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.
Biogeochemical Cycle
Thermosphere
Safe Drinking Water Act
Consumers
26. Organisms which produce their own food.
Intensive Subsistence Farming
Grazers
Autotrophs
Non-government Organizations
27. Also called that water cycle - this process describes the cycling of water throughout the environment. The stages of this cycle are evaporation - condensation - transportation - precipitation - infiltration and percolation - and run off.
Intensive Subsistence Farming
Hydrologic Cycle
Clean Air Act
Denitrification
28. A UN conference held in Rio de Janeiro. The conference decided to protect biodiversity - reduce pollution emissions and greenhouse gasses - and promote sustainable development.
Earth Summit
Nitrous Oxide
Acid Rain
Parasitism
29. An influential book by Rachel Carson which helped begin the environmental movement.
R-Selected Populations
Silent Spring
Advection
Surface Run-Off
30. The process by which pollutants are carried by flowing water - such as a river.
Assimilation
Advection
Speciation
R-Selected Populations
31. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Evapotranspiration
Nitrogen Fixation
Coevolution
Tropical Rain Forest
32. The process of surface water entering the soil. This ensures that plants have adequate access to water.
Oligotrophs
Troposphere
Evapotranspiration
Infiltration
33. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.
Kyoto Protocol
Interplanting
Ammonification
Ecosystem
34. A principle that states that two species competing for a single resource cannot coexist. One species will inevitably gain an advantage over the other - causing the looser either to migrate or to become extinct.
Tundra
Competitive Exclusion
National Environmental Policy Act
Silent Spring
35. The rapid increase of harmful algae in a body of water.
Harmful Algal Bloom
Stratosphere
Stockholm Conference
Condensation
36. An act requiring federal agencies to detail the impact of proposed environmental policies.
National Environmental Policy Act
Deciduous Forest
Precipitation
Advection
37. An act which required the EPA to set standards for drinking water.
Safe Drinking Water Act
Harmful Algal Bloom
Browsers
Indicator Species
38. Precipitation which does not reach the soil but is instead collected by plants.
Insurance Spraying
Interception
Troposphere
Lithosphere
39. A theory that our current ecological problems are a product of deeper social problems.
Wilderness Act
Social Ecology
Community
Evapotranspiration
40. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Tundra
Detrivores
Eukaryotes
Thermosphere
41. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Grasslands
Homo Sapiens
Population
Ozone
42. Any living thing on earth.
Organism
Transpiration
Neanderthals
Biogeochemical Cycle
43. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.
Aldo Leopold
National Environmental Policy Act
Montreal Protocol
Acid Rain
44. A community of similar living organisms largely affected by the area's climate.
Taiga
Detrivores
Hetrotrophs
Biomes
45. A type of farming where the farmer will fell and burn down trees to grow crops. After a few years - he will move on and continue the process.
Air Pollution
Eutrophication
Non-government Organizations
Shifting Agriculture
46. The crust and upper mantle of the earth.
Snowmelt
Estuary
Infiltration
Lithosphere
47. Consumers which eat only other animals.
Oligotrophs
Deciduous Forest
Carnivores
Temperature Inversion
48. All of the water found on earth.
Thermosphere
Hydrosphere
Ecotone
Copiotrophs
49. A type of symbiosis where each species will benefit from interacting with the other.
Mutualism
Interception
Toxic Substances Control Act
Consumers
50. A forest found in temperate regions with warm summers - cool winters - and plenty of rainfall. These kinds of forests are characterized by evergreens and deciduous trees.
Coniferous Forest
Exosphere
Producers
Autotrophs