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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 UN's first major conference on environmental issues.
Gross Primary Product
Economic Threshold
Stockholm Conference
Symbiosis
2. The uppermost atmospheric layer. Here satellites orbit the earth.
Grazers
Mesosphere
Aldo Leopold
Exosphere
3. A greenhouse gas which also plays a key role in regulating ozone levels.
Assimilation
Wildlife Management
Nitrous Oxide
Biogeochemical Cycle
4. A type of symbiosis where one species benefit at the expense of the other.
Omnivores
Assimilation
Parasitism
Earth Summit
5. The spraying of pesticides to keep produce from any injuries or damage.
Neanderthals
Cosmetic Spraying
Silent Spring
Organism
6. An extinct hominid species believed to have long - ape-like arms; have a brain capacity half that of modern men; and use primitive tools.
Water Pollution Control Act
Homo Habilis
Homo Erectus
Antarctica
7. A community of similar living organisms largely affected by the area's climate.
Ecology
Biogeochemical Cycle
Biomes
Ecosystem
8. An especially potent greenhouse gas emitted during production and transportation of fossil fuels - decomposition of organic matter - and herds of livestock.
Methane
Agroforestry
Earth Summit
Clean Air Act
9. Populations characterized by large size - long lifespan - and few offspring.
Neanderthals
K-Selected Populations
Subsistence Farming
Indicator Species
10. 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.
Nitrification
Carbon Dioxide
Silent Spring
Chaparral
11. Organisms which consume autotrophs for food.
Hetrotrophs
Methane
Denitrification
Snowmelt
12. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Interception
Transpiration
Condensation
Sublimation
13. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Australopithecus Afarensis
Agroforestry
Insurance Spraying
Brackish Water
14. An act which protects certain lands as national parks.
Wilderness Act
Social Ecology
R-Selected Populations
Sahelanthropus Tchadensis
15. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Grasslands
Intensive Subsistence Farming
Tropopause
Montreal Protocol
16. 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.
Earth Summit
Competitive Exclusion
Nitrogen Fixation
Biodiversity
17. A type of farming where the farmer will grow just enough crops to satisfy his family's needs for the next year.
Biosphere
Omnivores
Hydrosphere
Subsistence Farming
18. The process by which certain kinds of bacteria convert atmospheric nitrogen gas into ammonia - a form accessible to living creatures.
Nitrogen Fixation
Monoculture
Thermosphere
Grasslands
19. An international convention which created the framework for protecting the ozone layer.
Stockholm Conference
Monoculture
Carnivores
Vienna Convention for the Protection of the Ozone Layer
20. The spraying of pesticides to prevent a pest problem before it happens.
Producers
Insurance Spraying
Nitrous Oxide
Ecology
21. The crust and upper mantle of the earth.
Lithosphere
Superfund Law
Population
Interception
22. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Deserts
Hetrotrophs
Precipitation
Savannah
23. The process by which pollutants are carried by flowing water - such as a river.
Mesosphere
Advection
Eukaryotes
Toxic Substances Control Act
24. A group of similar organisms capable of interbreeding.
Sahelanthropus Tchadensis
Species
Symbiosis
Eukaryotes
25. Growing only one crop at a time.
Condensation
Safe Drinking Water Act
Advection
Monoculture
26. A situation where a layer of warmer air traps lower - cooler air - causing pollution to collect near the ground.
Temperature Inversion
Evaporation
Mesosphere
World Trade Organization
27. All of the water found on earth.
Population
Hydrosphere
Community
Total Fertility Rate
28. An extinct hominid species with near the same brain capacity as modern man believed to use fire and stone tools - live a hunter/gatherer lifestyle - and speak a language.
Homo Erectus
Eukaryotes
Agroforestry
Browsers
29. 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.
Advection
Speciation
Exosphere
Interplanting
30. Organisms which thrive in high nutrient environments - especially those with plenty of carbon.
Carnivores
Interplanting
Copiotrophs
Oligotrophs
31. An international protocol designed to stabilize global warming.
Speciation
Interplanting
Kyoto Protocol
Resource Partitioning
32. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Evaporation
Aldo Leopold
Keystone Species
Sublimation
33. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.
Montreal Protocol
Organism
Toxic Substances Control Act
Ozone
34. A theory that our current ecological problems are a product of deeper social problems.
Social Ecology
Earth Summit
Assimilation
Insurance Spraying
35. Evolution in one organism due to change in a related organism.
Trophic Level
Coevolution
Sahelanthropus Tchadensis
Montreal Protocol
36. Plants taking in nitrates from the soil.
Australopithecus Afarensis
Grazers
Assimilation
Interplanting
37. 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
Biomes
Antarctica
Ozone
Water Pollution Control Act
38. A forest characterized by clearly differentiated seasons - such as the trees loosing leaves in the fall and heavy snowfall in the winter.
Aldo Leopold
Homo Sapiens
Endangered Species Act
Deciduous Forest
39. A type of symbiosis where each species will benefit from interacting with the other.
Subsurface flow
Estuary
Air Pollution
Mutualism
40. A variety of species living together.
UN Conference on Population and Development
Resource Partitioning
Hydrologic Cycle
Community
41. 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.
Copiotrophs
Homo Sapiens
Brackish Water
Environmental Ethics
42. An American environmentalist who is famous for promoting the ideas of environmental ethics and wildlife management.
Advection
Aldo Leopold
Consumers
Browsers
43. The process of planting different plant species right next to each other to maximize one's yield.
Eukaryotes
Interplanting
Biogeochemical Cycle
Nitrous Oxide
44. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Polyculture
Evapotranspiration
Autotrophs
Gross Primary Product
45. The loss of water vapor from leaves.
Cosmetic Spraying
Transpiration
Organism
Hydrologic Cycle
46. An extinct hominid species believed to be the last common ancestor between man and apes.
Keystone Species
Surface Run-Off
Earth Summit
Sahelanthropus Tchadensis
47. A transitional area between two different ecosystems.
Endangered Species Act
Montreal Protocol
Eukaryotes
Ecotone
48. A partially enclosed part of the ocean with rivers or streams flowing into it.
Biogeochemical Cycle
Estuary
Mesosphere
Kyoto Protocol
49. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Symbiosis
Ecological Niche
Speciation
Methane
50. An act created to protect endangered and threatened species.
Intensive Subsistence Farming
Endangered Species Act
Eutrophication
Precipitation