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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. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
Ammonification
Mutualism
Toxic Substances Control Act
Atmosphere
2. Animals which eat grass and roots.
Grazers
Shifting Agriculture
Methane
Community
3. An act requiring federal agencies to detail the impact of proposed environmental policies.
Methane
Transpiration
Silent Spring
National Environmental Policy Act
4. Animals which eat leaves and shoots.
Omnivores
Browsers
Tropopause
Consumers
5. 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.
Evaporation
National Environmental Policy Act
Speciation
Ozone
6. A partially enclosed part of the ocean with rivers or streams flowing into it.
Oligotrophs
Symbiosis
Copiotrophs
Estuary
7. Consumers which eat only other animals.
Mesosphere
Carnivores
Coevolution
Evapotranspiration
8. 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
Air Pollution
Assimilation
Indicator Species
Species
9. Evolution in one organism due to change in a related organism.
Detrivores
Vienna Convention for the Protection of the Ozone Layer
Coevolution
Superfund Law
10. The process of surface water entering the soil. This ensures that plants have adequate access to water.
Water Pollution Control Act
Alley Cropping
Environmental Protection Agency
Infiltration
11. A forest near the equator with heavy rainfall and a great diversity of plant and animal life. Although a mere 2% of the earth is covered with these forests - they contain 50-80% of earth's land species.
Tropical Rain Forest
Interplanting
Polyculture
Grasslands
12. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Ecosystem
Atmosphere
Thermosphere
Ecology
13. A type of symbiosis where one species benefit at the expense of the other.
Parasitism
Subsistence Farming
Indicator Species
Australopithecus Afarensis
14. Political organizations not affiliated with the government which try to bring about social change.
K-Selected Populations
Ecological Niche
Non-government Organizations
Nitrogen Fixation
15. Average expected birth rate for 1 -000 women.
Total Fertility Rate
Harmful Algal Bloom
Subsurface flow
Air Pollution
16. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.
Brackish Water
Homo Habilis
Hetrotrophs
Hydrosphere
17. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Air Pollution
Tropopause
Silent Spring
Deserts
18. The southern-most continent - of which 98% is ice. This continent includes 70% of the world's fresh water - and 90% of the world's ice. Although the average temperature is -49
Antarctica
Coniferous Forest
Homo Habilis
Superfund Law
19. A community of similar living organisms largely affected by the area's climate.
Toxic Substances Control Act
Biomes
Alley Cropping
Polyculture
20. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Mesosphere
Brackish Water
Neanderthals
Alley Cropping
21. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
Competitive Exclusion
Methane
R-Selected Populations
Nitrification
22. An international convention which created the framework for protecting the ozone layer.
Vienna Convention for the Protection of the Ozone Layer
Aldo Leopold
Detrivores
Social Ecology
23. The amount of pests needed before spraying pesticides is economical.
Infiltration
Economic Threshold
Thermosphere
Taiga
24. A community of species interacting with their nonliving (abiotic) environment.
Ecosystem
Condensation
Brackish Water
Homo Erectus
25. Organisms with a nucleus.
Acid Rain
Tundra
Eukaryotes
Clean Air Act
26. Organisms which thrive in high nutrient environments - especially those with plenty of carbon.
Speciation
Taiga
Subsistence Farming
Copiotrophs
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.
Gross Primary Product
Savannah
Producers
Hydrologic Cycle
28. 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.
Wildlife Management
Toxic Substances Control Act
Chaparral
R-Selected Populations
29. The position of an organism on the food chain.
Trophic Level
Ammonification
Polyculture
Organism
30. A greenhouse gas which also plays a key role in regulating ozone levels.
Nitrous Oxide
K-Selected Populations
Water Pollution Control Act
Deserts
31. The process of a gas transforming into a liquid.
Indicator Species
Wilderness Act
Nitrification
Condensation
32. The cloudiness of a liquid due to small suspended particles.
Interception
Snowmelt
Turbidity
Social Ecology
33. The spraying of pesticides to prevent a pest problem before it happens.
Intensive Subsistence Farming
Insurance Spraying
Omnivores
Biodiversity
34. Modern man.
Autotrophs
Endangered Species Act
Estuary
Homo Sapiens
35. 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.
Shifting Agriculture
Hydrologic Cycle
Troposphere
Interplanting
36. 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.
Evaporation
Coniferous Forest
Ecology
Condensation
37. Species which react quickly to an environmental change and therefore can be used to diagnose a particular ecosystem.
Denitrification
Biodiversity
Interception
Indicator Species
38. A transitional area between two different ecosystems.
Community
Cosmetic Spraying
Producers
Ecotone
39. The process by which certain kinds of bacteria convert atmospheric nitrogen gas into ammonia - a form accessible to living creatures.
Nitrogen Fixation
Infiltration
Lithosphere
UN Conference on Population and Development
40. All members of a species which live in the same area.
Neanderthals
Safe Drinking Water Act
Population
Stratosphere
41. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Assimilation
Monoculture
Precipitation
Ecology
42. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Eutrophication
Temperature Inversion
Taiga
Troposphere
43. A type of symbiosis where one species will benefit while the other will be neither benefit or be harmed.
Consumers
Polyculture
Homo Erectus
Commensalism
44. The uppermost atmospheric layer. Here satellites orbit the earth.
Agroforestry
Exosphere
Mutualism
Grasslands
45. An act which protects certain lands as national parks.
Mutualism
Environmental Protection Agency
Wilderness Act
Ecology
46. An act which required the EPA to set standards for drinking water.
Safe Drinking Water Act
Biosphere
Harmful Algal Bloom
Resource Partitioning
47. An extinct hominid species believed to have long - ape-like arms; have a brain capacity half that of modern men; and use primitive tools.
Troposphere
Turbidity
Parasitism
Homo Habilis
48. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.
Wilderness Act
Chaparral
Ammonification
Air Pollution
49. The study of the interaction between organisms and their environment.
Ecology
Wildlife Management
Harmful Algal Bloom
Eukaryotes
50. An agency created to establish regulations concerning pollutants to protect humans and the environment.
Advection
Agroforestry
Lithosphere
Environmental Protection Agency