SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. All members of a species which live in the same area.
Population
Aldo Leopold
Cosmetic Spraying
Biosphere
2. An influential book by Rachel Carson which helped begin the environmental movement.
Silent Spring
Hydrosphere
Organism
Clean Air Act
3. A community of similar living organisms largely affected by the area's climate.
Ammonification
Environmental Protection Agency
Biomes
Taiga
4. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Deciduous Forest
Shifting Agriculture
Subsistence Farming
Australopithecus Afarensis
5. The crust and upper mantle of the earth.
Producers
Hydrologic Cycle
Coniferous Forest
Lithosphere
6. Evolution in one organism due to change in a related organism.
Coevolution
Sahelanthropus Tchadensis
Transpiration
Environmental Protection Agency
7. An act which set standards for the amount of pollution in water.
Surface Run-Off
Endangered Species Act
Parasitism
Water Pollution Control Act
8. The process by which the sun's energy converts liquid water to water vapor in the atmosphere.
Evaporation
Trophic Level
National Environmental Policy Act
Endangered Species Act
9. Organisms which consume autotrophs for food.
Hetrotrophs
Denitrification
Troposphere
Ozone
10. A group of similar organisms capable of interbreeding.
Omnivores
Biogeochemical Cycle
Atmosphere
Species
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.
Condensation
Intensive Subsistence Farming
Grazers
Eukaryotes
12. A partially enclosed part of the ocean with rivers or streams flowing into it.
Estuary
Silent Spring
Precipitation
Insurance Spraying
13. The flow of water in the water table.
Nitrogen Fixation
Subsurface flow
Transpiration
Detrivores
14. 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
Assimilation
Detrivores
R-Selected Populations
15. Political organizations not affiliated with the government which try to bring about social change.
Organism
Superfund Law
Non-government Organizations
Snowmelt
16. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Evapotranspiration
Deciduous Forest
Ammonification
Hydrologic Cycle
17. A UN conference that addressed the growing population problem.
Browsers
UN Conference on Population and Development
Exosphere
Trophic Level
18. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Thermosphere
Total Fertility Rate
Speciation
Keystone Species
19. Consumers which eat decomposing organic material.
Endangered Species Act
Turbidity
Detrivores
Autotrophs
20. An international protocol designed to stabilize global warming.
Mutualism
Kyoto Protocol
Agroforestry
Advection
21. 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.
Tundra
Speciation
Stockholm Conference
Thermosphere
22. An especially potent greenhouse gas emitted during production and transportation of fossil fuels - decomposition of organic matter - and herds of livestock.
Resource Partitioning
Methane
Detrivores
Grasslands
23. A greenhouse gas which also plays a key role in regulating ozone levels.
Nitrous Oxide
Evaporation
Tropopause
Silent Spring
24. All of the ecosystems on earth.
Subsistence Farming
Biosphere
Social Ecology
Ecology
25. An act created to protect endangered and threatened species.
Estuary
Endangered Species Act
Environmental Ethics
Commensalism
26. A type of symbiosis where each species will benefit from interacting with the other.
Tropical Rain Forest
Vienna Convention for the Protection of the Ozone Layer
Cosmetic Spraying
Mutualism
27. Different species living in close contact with each other.
Symbiosis
Evapotranspiration
Ecosystem
Economic Threshold
28. The process of a gas transforming into a liquid.
Condensation
Estuary
R-Selected Populations
Sublimation
29. The study of the interaction between organisms and their environment.
Eukaryotes
Ecology
Temperate Rain Forest
Trophic Level
30. An American environmentalist who is famous for promoting the ideas of environmental ethics and wildlife management.
Australopithecus Afarensis
Montreal Protocol
Aldo Leopold
Commensalism
31. A greenhouse gas. Although it is a natural part of the carbon cycle - the atmospheric concentration of this gas has increased due to the burning of fossil fuels.
Mutualism
Carbon Dioxide
Mesosphere
Evaporation
32. Single-celled organisms which lack a nucleus.
Producers
Prokaryotes
Precipitation
Biodiversity
33. Consumers which eat only other animals.
Evaporation
Ecotone
Nitrous Oxide
Carnivores
34. 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.
Carnivores
Interception
Deserts
UN Conference on Population and Development
35. The spraying of pesticides to keep produce from any injuries or damage.
Harmful Algal Bloom
Cosmetic Spraying
Economic Threshold
Tundra
36. The loss of water vapor from leaves.
Wilderness Act
World Trade Organization
Transpiration
Tundra
37. Any living thing on earth.
Nitrogen Fixation
Organism
Nitrous Oxide
Exosphere
38. The rate at which producers create organic material.
Population
Environmental Ethics
Grasslands
Gross Primary Product
39. A transitional area between two different ecosystems.
Competitive Exclusion
Silent Spring
Ecotone
Nitrification
40. The process of planting different plant species right next to each other to maximize one's yield.
Acid Rain
Interplanting
Mutualism
Eukaryotes
41. A layer of gasses surrounding the earth.
Interplanting
Atmosphere
Biogeochemical Cycle
Organism
42. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.
Ammonification
Subsurface flow
Ozone
Eukaryotes
43. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Thermosphere
Tropopause
Hydrosphere
Biomes
44. Organisms with a nucleus.
Speciation
Eukaryotes
Sublimation
Mutualism
45. Consumers which eat both plants and animals.
Mutualism
Gross Primary Product
Omnivores
Wilderness Act
46. An act which established and enforced acceptable levels of air pollution.
Clean Air Act
Infiltration
Non-government Organizations
Symbiosis
47. The conversion of nitrates into nitrogen gas.
Total Fertility Rate
Denitrification
Ecotone
Subsistence Farming
48. An unstable form of oxygen which protects the earth from UV radiation. Although naturally occurring in the stratosphere (upper atmosphere) - in the lower atmosphere this gas acts as a pollutant.
Economic Threshold
Assimilation
Producers
Ozone
49. Growing only one crop at a time.
Wilderness Act
Monoculture
Social Ecology
Environmental Protection Agency
50. 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.
Autotrophs
Carnivores
Nitrogen Fixation
Hydrologic Cycle