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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. Organisms which create their own food out of inorganic (abiotic) substances.
Producers
Subsistence Farming
Detrivores
Eukaryotes
2. The crust and upper mantle of the earth.
Lithosphere
Sublimation
Population
Non-government Organizations
3. An international convention which created the framework for protecting the ozone layer.
Grasslands
Condensation
Autotrophs
Vienna Convention for the Protection of the Ozone Layer
4. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.
Economic Threshold
Environmental Protection Agency
Ecology
Montreal Protocol
5. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Ecology
Tropopause
Mutualism
Vienna Convention for the Protection of the Ozone Layer
6. 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.
Superfund Law
Oligotrophs
Nitrous Oxide
Intensive Subsistence Farming
7. The position of an organism on the food chain.
Vienna Convention for the Protection of the Ozone Layer
Troposphere
Interplanting
Trophic Level
8. A community of similar living organisms largely affected by the area's climate.
Turbidity
Water Pollution Control Act
Precipitation
Biomes
9. A group of similar organisms capable of interbreeding.
Clean Air Act
Estuary
Species
Insurance Spraying
10. The loss of water vapor from leaves.
Tundra
Trophic Level
Transpiration
Clean Air Act
11. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Gross Primary Product
Australopithecus Afarensis
Mesosphere
Precipitation
12. 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.
Taiga
Advection
Symbiosis
Stratosphere
13. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.
Cosmetic Spraying
Biogeochemical Cycle
Organism
Browsers
14. The spraying of pesticides to prevent a pest problem before it happens.
Insurance Spraying
Lithosphere
Turbidity
Carnivores
15. Animals which eat grass and roots.
Grazers
Ammonification
Environmental Ethics
Browsers
16. 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.
Indicator Species
R-Selected Populations
Temperature Inversion
Speciation
17. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Producers
Polyculture
Precipitation
Methane
18. The process by which the sun's energy converts liquid water to water vapor in the atmosphere.
Evaporation
Hetrotrophs
Lithosphere
Subsistence Farming
19. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
Nitrification
Total Fertility Rate
Safe Drinking Water Act
Prokaryotes
20. The amount of pests needed before spraying pesticides is economical.
Economic Threshold
Tropopause
Environmental Protection Agency
Species
21. Exceptionally acidic (low pH) rain. This phenomenon is caused mainly by emissions of carbon dioxide - sulfur dioxide - and nitrogen oxide which react with water particles in the air.
Nitrogen Fixation
Toxic Substances Control Act
UN Conference on Population and Development
Acid Rain
22. A community of species interacting with their nonliving (abiotic) environment.
Ecosystem
Trophic Level
Wildlife Management
Tropical Rain Forest
23. Growing only one crop at a time.
Shifting Agriculture
Polyculture
Monoculture
Population
24. An extinct hominid species believed to have long - ape-like arms; have a brain capacity half that of modern men; and use primitive tools.
Agroforestry
Homo Habilis
Water Pollution Control Act
Hydrosphere
25. An act requiring federal agencies to detail the impact of proposed environmental policies.
Evaporation
Homo Erectus
Estuary
National Environmental Policy Act
26. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.
Ammonification
Detrivores
Copiotrophs
Clean Air Act
27. The middle atmospheric layer. Meteors burn up after entering this layer.
Mesosphere
Total Fertility Rate
Temperature Inversion
Homo Habilis
28. Different species living in close contact with each other.
Environmental Protection Agency
Symbiosis
Species
Ammonification
29. An extinct hominid species believed to be the last common ancestor between man and apes.
Resource Partitioning
Sahelanthropus Tchadensis
Ammonification
Producers
30. 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.
Alley Cropping
Oligotrophs
Competitive Exclusion
Symbiosis
31. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
Wildlife Management
Toxic Substances Control Act
Advection
Species
32. A type of farming where the farmer will grow just enough crops to satisfy his family's needs for the next year.
Wilderness Act
Subsistence Farming
Carbon Dioxide
Biomes
33. The process of planting trees in between other crops.
Total Fertility Rate
Biosphere
Alley Cropping
Subsurface flow
34. An especially potent greenhouse gas emitted during production and transportation of fossil fuels - decomposition of organic matter - and herds of livestock.
Turbidity
Subsurface flow
Methane
Transpiration
35. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.
Transpiration
Surface Run-Off
Brackish Water
Atmosphere
36. A greenhouse gas which also plays a key role in regulating ozone levels.
Advection
Nitrous Oxide
Chaparral
Lithosphere
37. Populations characterized by large size - long lifespan - and few offspring.
Shifting Agriculture
R-Selected Populations
Prokaryotes
K-Selected Populations
38. An international protocol designed to stabilize global warming.
Montreal Protocol
Homo Erectus
Kyoto Protocol
Carbon Dioxide
39. Consumers which eat both plants and animals.
Infiltration
Omnivores
Tropical Rain Forest
Nitrification
40. Organisms with a nucleus.
Antarctica
Interception
Eukaryotes
Chaparral
41. Excess water which cannot be infiltrated into the soil and instead flows along the ground.
Omnivores
Surface Run-Off
Commensalism
Subsurface flow
42. Single-celled organisms which lack a nucleus.
Total Fertility Rate
Resource Partitioning
Prokaryotes
Grazers
43. The rapid increase of harmful algae in a body of water.
Harmful Algal Bloom
Toxic Substances Control Act
Montreal Protocol
Non-government Organizations
44. The process of surface water entering the soil. This ensures that plants have adequate access to water.
Infiltration
National Environmental Policy Act
Alley Cropping
Coevolution
45. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Mesosphere
Coevolution
Ecological Niche
Interception
46. A variety of species living together.
Tundra
Cosmetic Spraying
Community
Temperature Inversion
47. The coexistence of two species using the same resource where the two will use the resource in different ways.
Deciduous Forest
Resource Partitioning
Antarctica
Hydrosphere
48. The conversion of nitrates into nitrogen gas.
Carnivores
Estuary
Denitrification
Evapotranspiration
49. Any living thing on earth.
Eukaryotes
Subsurface flow
Organism
Consumers
50. 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
Nitrous Oxide
Vienna Convention for the Protection of the Ozone Layer
Homo Sapiens