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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. Political organizations not affiliated with the government which try to bring about social change.
Agroforestry
Clean Air Act
Non-government Organizations
Australopithecus Afarensis
2. 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.
Monoculture
Vienna Convention for the Protection of the Ozone Layer
Tropical Rain Forest
Brackish Water
3. All of the ecosystems on earth.
Biosphere
Precipitation
Chaparral
Hydrologic Cycle
4. 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
Safe Drinking Water Act
Grazers
Taiga
5. The coexistence of two species using the same resource where the two will use the resource in different ways.
Speciation
Resource Partitioning
Ecosystem
Infiltration
6. 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.
Ecosystem
Speciation
Environmental Ethics
Sublimation
7. 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.
Polyculture
Intensive Subsistence Farming
Evaporation
Endangered Species Act
8. A UN conference held in Rio de Janeiro. The conference decided to protect biodiversity - reduce pollution emissions and greenhouse gasses - and promote sustainable development.
Infiltration
Omnivores
Symbiosis
Earth Summit
9. The flow of water in the water table.
Environmental Protection Agency
Subsurface flow
Sublimation
Interception
10. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Sublimation
Social Ecology
Savannah
Homo Erectus
11. An act which required the EPA to set standards for drinking water.
Safe Drinking Water Act
Thermosphere
Carbon Dioxide
Grasslands
12. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.
Hetrotrophs
R-Selected Populations
Brackish Water
Taiga
13. Precipitation which does not reach the soil but is instead collected by plants.
Deciduous Forest
Intensive Subsistence Farming
Interception
Hydrologic Cycle
14. 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.
Producers
Sahelanthropus Tchadensis
Carbon Dioxide
Grazers
15. Organisms which consume autotrophs for food.
Interplanting
Hetrotrophs
Keystone Species
Environmental Protection Agency
16. All members of a species which live in the same area.
Population
Antarctica
Kyoto Protocol
Biodiversity
17. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.
Superfund Law
World Trade Organization
Evaporation
Estuary
18. An especially potent greenhouse gas emitted during production and transportation of fossil fuels - decomposition of organic matter - and herds of livestock.
Speciation
Ammonification
Methane
Condensation
19. Consumers which eat only other animals.
Carnivores
Economic Threshold
Agroforestry
Atmosphere
20. Organisms which eat other organisms.
Mutualism
Detrivores
Montreal Protocol
Consumers
21. The conversion of nitrates into nitrogen gas.
Subsistence Farming
Hydrologic Cycle
Denitrification
Ammonification
22. The process of planting different plant species right next to each other to maximize one's yield.
Total Fertility Rate
Subsurface flow
Interplanting
Lithosphere
23. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Hydrosphere
Sublimation
Surface Run-Off
Shifting Agriculture
24. A group of similar organisms capable of interbreeding.
Coevolution
Gross Primary Product
Eukaryotes
Species
25. 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.
Gross Primary Product
Neanderthals
Non-government Organizations
Environmental Ethics
26. A transitional area between two different ecosystems.
Prokaryotes
Antarctica
Ecotone
Thermosphere
27. An international protocol designed to stabilize global warming.
Turbidity
Kyoto Protocol
Silent Spring
Stratosphere
28. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Evapotranspiration
Troposphere
Transpiration
Snowmelt
29. A forest characterized by clearly differentiated seasons - such as the trees loosing leaves in the fall and heavy snowfall in the winter.
Deciduous Forest
Vienna Convention for the Protection of the Ozone Layer
Biogeochemical Cycle
Eukaryotes
30. 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.
Biodiversity
Hydrologic Cycle
Polyculture
Consumers
31. A layer of gasses surrounding the earth.
Toxic Substances Control Act
Advection
Atmosphere
Superfund Law
32. 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.
Acid Rain
Exosphere
Parasitism
Air Pollution
33. An agency created to establish regulations concerning pollutants to protect humans and the environment.
Agroforestry
Intensive Subsistence Farming
Population
Environmental Protection Agency
34. Growing only one crop at a time.
Sublimation
Monoculture
Earth Summit
Polyculture
35. Populations characterized by large size - long lifespan - and few offspring.
K-Selected Populations
Nitrification
Coniferous Forest
Ecotone
36. The cloudiness of a liquid due to small suspended particles.
Turbidity
Agroforestry
Oligotrophs
Population
37. A type of farming where the farmer will grow just enough crops to satisfy his family's needs for the next year.
Economic Threshold
R-Selected Populations
Subsistence Farming
Cosmetic Spraying
38. An influential book by Rachel Carson which helped begin the environmental movement.
Silent Spring
Subsurface flow
Thermosphere
Clean Air Act
39. Average expected birth rate for 1 -000 women.
Monoculture
Total Fertility Rate
Social Ecology
Taiga
40. The rate at which producers create organic material.
Tundra
Carnivores
Condensation
Gross Primary Product
41. Animals which eat grass and roots.
Keystone Species
Water Pollution Control Act
Grazers
Parasitism
42. Animals which eat leaves and shoots.
Advection
Browsers
Symbiosis
National Environmental Policy Act
43. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.
Montreal Protocol
Community
Cosmetic Spraying
Trophic Level
44. The amount of pests needed before spraying pesticides is economical.
Autotrophs
Cosmetic Spraying
Silent Spring
Economic Threshold
45. An extinct hominid species believed to have long - ape-like arms; have a brain capacity half that of modern men; and use primitive tools.
Gross Primary Product
Grasslands
Subsistence Farming
Homo Habilis
46. The spraying of pesticides to prevent a pest problem before it happens.
Insurance Spraying
Shifting Agriculture
Browsers
Homo Sapiens
47. All of the water found on earth.
Nitrification
Environmental Ethics
Subsistence Farming
Hydrosphere
48. A greenhouse gas which also plays a key role in regulating ozone levels.
R-Selected Populations
Detrivores
Condensation
Nitrous Oxide
49. The process of planting trees in between other crops.
Homo Habilis
Tundra
Evapotranspiration
Alley Cropping
50. An act which set standards for the amount of pollution in water.
Antarctica
Water Pollution Control Act
Evapotranspiration
Carbon Dioxide