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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. The cloudiness of a liquid due to small suspended particles.
Turbidity
Economic Threshold
Infiltration
Insurance Spraying
2. The spraying of pesticides to prevent a pest problem before it happens.
Insurance Spraying
Taiga
Evaporation
Environmental Protection Agency
3. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.
Taiga
Gross Primary Product
Mesosphere
Biogeochemical Cycle
4. An act which protects certain lands as national parks.
Interplanting
Grazers
Wilderness Act
Stratosphere
5. Growing only one crop at a time.
Monoculture
Eutrophication
Organism
Safe Drinking Water Act
6. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Troposphere
Oligotrophs
Browsers
Assimilation
7. 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.
Environmental Protection Agency
Biodiversity
Alley Cropping
Toxic Substances Control Act
8. The loss of water vapor from leaves.
Commensalism
Transpiration
Environmental Protection Agency
Detrivores
9. All members of a species which live in the same area.
Population
Gross Primary Product
Brackish Water
Economic Threshold
10. A form of management which attempts to satisfy both the needs of humans and those of wildlife in the best way possible for both parties.
Interplanting
Carbon Dioxide
Wildlife Management
Aldo Leopold
11. A type of farming where the farmer will grow crops both to fulfill his family's needs for the next year and to sell on the market.
Gross Primary Product
Troposphere
Intensive Subsistence Farming
Earth Summit
12. Populations characterized by large size - long lifespan - and few offspring.
Insurance Spraying
Snowmelt
K-Selected Populations
National Environmental Policy Act
13. Plants taking in nitrates from the soil.
Copiotrophs
Assimilation
Atmosphere
Homo Erectus
14. A layer of gasses surrounding the earth.
Atmosphere
Lithosphere
Superfund Law
Denitrification
15. The coexistence of two species using the same resource where the two will use the resource in different ways.
Ammonification
Harmful Algal Bloom
Troposphere
Resource Partitioning
16. The flow of water in the water table.
Producers
Assimilation
Subsurface flow
Evaporation
17. Different species living in close contact with each other.
Eutrophication
Symbiosis
Parasitism
Endangered Species Act
18. An extinct hominid species believed to have long - ape-like arms; have a brain capacity half that of modern men; and use primitive tools.
Homo Habilis
Ecology
Eutrophication
Nitrogen Fixation
19. A community of species interacting with their nonliving (abiotic) environment.
Chaparral
Consumers
Ecosystem
Estuary
20. Organisms which eat other organisms.
Lithosphere
Consumers
Tropopause
Silent Spring
21. A UN conference held in Rio de Janeiro. The conference decided to protect biodiversity - reduce pollution emissions and greenhouse gasses - and promote sustainable development.
Trophic Level
Homo Erectus
Earth Summit
Interception
22. The process of planting different plant species right next to each other to maximize one's yield.
Lithosphere
Kyoto Protocol
Deciduous Forest
Interplanting
23. Biomes with less than 10 inches of rain a year. Foliage is scarce in these areas - and remaining plants and animals work hard to conserve the little water they receive.
Deserts
Advection
Tropopause
Mutualism
24. A philosophy that extends ethics to non-humans. Under this system - animals - plants - and other aspects of the environment are seen as being deserving of justice and consideration.
Environmental Ethics
Evaporation
Grasslands
Mesosphere
25. The process by which pollutants are carried by flowing water - such as a river.
Advection
Earth Summit
Grasslands
Environmental Ethics
26. Evolution in one organism due to change in a related organism.
Deciduous Forest
Coevolution
Savannah
Agroforestry
27. An extinct hominid species believed to be the last common ancestor between man and apes.
Sahelanthropus Tchadensis
Tundra
Cosmetic Spraying
Consumers
28. The conversion of nitrates into nitrogen gas.
Denitrification
Temperature Inversion
Chaparral
Economic Threshold
29. A type of symbiosis where one species will benefit while the other will be neither benefit or be harmed.
Hydrologic Cycle
Stockholm Conference
Troposphere
Commensalism
30. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Taiga
Evapotranspiration
Economic Threshold
Acid Rain
31. Organisms which produce their own food.
Nitrification
Nitrogen Fixation
Environmental Protection Agency
Autotrophs
32. A theory that our current ecological problems are a product of deeper social problems.
Temperate Rain Forest
Social Ecology
Homo Habilis
Competitive Exclusion
33. A type of symbiosis where one species benefit at the expense of the other.
Mutualism
Safe Drinking Water Act
Stratosphere
Parasitism
34. Populations characterized by small size - short lifespan - and lots of offspring.
R-Selected Populations
Clean Air Act
Environmental Ethics
Resource Partitioning
35. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Ecological Niche
Shifting Agriculture
Sahelanthropus Tchadensis
Troposphere
36. An agency created to establish regulations concerning pollutants to protect humans and the environment.
Environmental Protection Agency
Deserts
Denitrification
Thermosphere
37. The crust and upper mantle of the earth.
Environmental Ethics
Lithosphere
Hetrotrophs
Clean Air Act
38. The spraying of pesticides to keep produce from any injuries or damage.
Tropopause
Parasitism
Cosmetic Spraying
Detrivores
39. 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.
Biogeochemical Cycle
Antarctica
Wilderness Act
Chaparral
40. Surface run-off caused by melted snow.
Subsurface flow
Brackish Water
Snowmelt
Species
41. A group of similar organisms capable of interbreeding.
Speciation
Tundra
Species
Omnivores
42. The process by which a new species is created. This process generally requires geographic isolation to prevent interbreeding between the newly emerging species and the parent species.
Ecotone
Community
Speciation
Browsers
43. Precipitation which does not reach the soil but is instead collected by plants.
Vienna Convention for the Protection of the Ozone Layer
Ozone
Carbon Dioxide
Interception
44. An international organization designed to promote free trade between countries.
Precipitation
Interplanting
Biodiversity
World Trade Organization
45. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
Estuary
Nitrification
Hetrotrophs
Grasslands
46. An act requiring federal agencies to detail the impact of proposed environmental policies.
Consumers
Deciduous Forest
National Environmental Policy Act
Speciation
47. A type of symbiosis where each species will benefit from interacting with the other.
Mutualism
Homo Sapiens
Parasitism
Safe Drinking Water Act
48. A rainforest in the temperate zone which receives heavy rainfall.
Intensive Subsistence Farming
Agroforestry
Temperate Rain Forest
UN Conference on Population and Development
49. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.
Superfund Law
Brackish Water
Competitive Exclusion
Biodiversity
50. An influential book by Rachel Carson which helped begin the environmental movement.
Thermosphere
Ecology
Monoculture
Silent Spring