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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. Populations characterized by large size - long lifespan - and few offspring.
Hydrosphere
K-Selected Populations
Economic Threshold
Stratosphere
2. 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.
Montreal Protocol
Estuary
Deciduous Forest
Shifting Agriculture
3. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Grasslands
Mesosphere
Organism
Harmful Algal Bloom
4. A community of species interacting with their nonliving (abiotic) environment.
Nitrous Oxide
Ecosystem
Producers
Monoculture
5. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Interception
Environmental Ethics
Insurance Spraying
Keystone Species
6. An especially potent greenhouse gas emitted during production and transportation of fossil fuels - decomposition of organic matter - and herds of livestock.
Homo Sapiens
Methane
Coevolution
Evapotranspiration
7. 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.
K-Selected Populations
Agroforestry
Taiga
Biomes
8. 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.
Organism
Species
Interplanting
Speciation
9. The amount of pests needed before spraying pesticides is economical.
Endangered Species Act
Economic Threshold
R-Selected Populations
Keystone Species
10. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.
Copiotrophs
Mutualism
Superfund Law
Stockholm Conference
11. An international protocol designed to stabilize global warming.
Australopithecus Afarensis
Kyoto Protocol
Superfund Law
Advection
12. The coexistence of two species using the same resource where the two will use the resource in different ways.
Assimilation
Grazers
Resource Partitioning
Stockholm Conference
13. Modern man.
Homo Sapiens
Exosphere
Prokaryotes
Subsistence Farming
14. The study of the interaction between organisms and their environment.
Ecology
Toxic Substances Control Act
Biodiversity
Homo Habilis
15. The middle atmospheric layer. Meteors burn up after entering this layer.
Clean Air Act
Aldo Leopold
Total Fertility Rate
Mesosphere
16. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Homo Habilis
Keystone Species
Australopithecus Afarensis
Carnivores
17. The cloudiness of a liquid due to small suspended particles.
Nitrification
Turbidity
Competitive Exclusion
Eutrophication
18. An agency created to establish regulations concerning pollutants to protect humans and the environment.
Endangered Species Act
Alley Cropping
Organism
Environmental Protection Agency
19. An influential book by Rachel Carson which helped begin the environmental movement.
Ozone
Oligotrophs
Silent Spring
Ecology
20. An American environmentalist who is famous for promoting the ideas of environmental ethics and wildlife management.
Trophic Level
Aldo Leopold
Earth Summit
Non-government Organizations
21. The rapid increase of harmful algae in a body of water.
Endangered Species Act
Atmosphere
Earth Summit
Harmful Algal Bloom
22. 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.
Environmental Ethics
Kyoto Protocol
Turbidity
Non-government Organizations
23. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Deserts
Indicator Species
Savannah
Grasslands
24. Integrating rows of trees alongside crops to provide mulch and shade - retain water in the soil - and promote sustainable land use.
Ecology
Biomes
Agroforestry
Monoculture
25. Precipitation which does not reach the soil but is instead collected by plants.
Mesosphere
Parasitism
Resource Partitioning
Interception
26. A transitional area between two different ecosystems.
Biogeochemical Cycle
Troposphere
Air Pollution
Ecotone
27. Single-celled organisms which lack a nucleus.
Copiotrophs
Savannah
Prokaryotes
Toxic Substances Control Act
28. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
Nitrification
Tropical Rain Forest
Cosmetic Spraying
Harmful Algal Bloom
29. All of the water found on earth.
Parasitism
Hydrosphere
Tundra
Total Fertility Rate
30. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Trophic Level
Superfund Law
Thermosphere
Producers
31. Organisms which produce their own food.
Nitrogen Fixation
Montreal Protocol
Detrivores
Autotrophs
32. An international organization designed to promote free trade between countries.
World Trade Organization
Total Fertility Rate
Savannah
Wilderness Act
33. An act which set standards for the amount of pollution in water.
Environmental Protection Agency
Water Pollution Control Act
Tropical Rain Forest
Silent Spring
34. 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
Temperate Rain Forest
Commensalism
World Trade Organization
35. A bloom of phytoplankton in a body of water caused by an abnormal increase in nutrients. This process depletes the water's oxygen level - killing off other aquatic organisms.
Eutrophication
Snowmelt
Tropical Rain Forest
Nitrification
36. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Polyculture
Sublimation
Precipitation
Estuary
37. Consumers which eat only other animals.
Silent Spring
Carnivores
Ecology
Superfund Law
38. The second atmospheric layer. The ozone layer is found here - increasing the temperature with altitude.
Stratosphere
Temperature Inversion
Deserts
Community
39. Organisms which create their own food out of inorganic (abiotic) substances.
Producers
Monoculture
Australopithecus Afarensis
National Environmental Policy Act
40. 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
Eukaryotes
Insurance Spraying
Lithosphere
41. The process of planting trees in between other crops.
Alley Cropping
Organism
Gross Primary Product
Clean Air Act
42. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Ecological Niche
Copiotrophs
Mesosphere
Consumers
43. A variety of species living together.
Chaparral
Competitive Exclusion
Estuary
Community
44. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Browsers
Tropical Rain Forest
Biogeochemical Cycle
Troposphere
45. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.
Biogeochemical Cycle
Water Pollution Control Act
Sublimation
Sahelanthropus Tchadensis
46. The crust and upper mantle of the earth.
Lithosphere
Grazers
Browsers
Australopithecus Afarensis
47. The process by which certain kinds of bacteria convert atmospheric nitrogen gas into ammonia - a form accessible to living creatures.
Wilderness Act
Nitrogen Fixation
Sublimation
Eutrophication
48. 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.
Water Pollution Control Act
Wildlife Management
Temperature Inversion
Interception
49. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Endangered Species Act
World Trade Organization
Temperate Rain Forest
Tropopause
50. Animals which eat grass and roots.
Agroforestry
Grazers
Brackish Water
Interception