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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. All of the ecosystems on earth.
Omnivores
Vienna Convention for the Protection of the Ozone Layer
Biosphere
Nitrogen Fixation
2. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Subsistence Farming
Intensive Subsistence Farming
Thermosphere
Sublimation
3. 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.
Tropical Rain Forest
Harmful Algal Bloom
Eutrophication
Sahelanthropus Tchadensis
4. 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.
Water Pollution Control Act
Detrivores
Stockholm Conference
Shifting Agriculture
5. Evolution in one organism due to change in a related organism.
Ecosystem
Oligotrophs
Coevolution
Trophic Level
6. Biomes with less than 10 inches of rain a year. Foliage is scarce in these areas - and remaining plants and animals work hard to conserve the little water they receive.
Alley Cropping
Nitrogen Fixation
Deserts
Grasslands
7. Integrating rows of trees alongside crops to provide mulch and shade - retain water in the soil - and promote sustainable land use.
Turbidity
Agroforestry
Clean Air Act
Biogeochemical Cycle
8. Biomes far north in North America - Europe - and Asia which - due to very low temperatures - cannot support tree growth.
Tundra
Interception
Cosmetic Spraying
Carnivores
9. 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
Coevolution
Eutrophication
Oligotrophs
10. The middle atmospheric layer. Meteors burn up after entering this layer.
Detrivores
Acid Rain
Mesosphere
Non-government Organizations
11. Growing only one crop at a time.
Monoculture
Biogeochemical Cycle
Biodiversity
Competitive Exclusion
12. Precipitation which does not reach the soil but is instead collected by plants.
Interception
Earth Summit
Parasitism
Resource Partitioning
13. 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
Ecosystem
Temperate Rain Forest
Ecotone
14. An act which set standards for the amount of pollution in water.
Carnivores
Water Pollution Control Act
R-Selected Populations
Carbon Dioxide
15. Growing more than one crop at a time.
Polyculture
Safe Drinking Water Act
Population
Eukaryotes
16. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Evapotranspiration
Consumers
Economic Threshold
Chaparral
17. The UN's first major conference on environmental issues.
Stockholm Conference
Condensation
Biosphere
Water Pollution Control Act
18. The position of an organism on the food chain.
Trophic Level
Ammonification
Denitrification
Safe Drinking Water Act
19. An act which protects certain lands as national parks.
Safe Drinking Water Act
Shifting Agriculture
Gross Primary Product
Wilderness Act
20. A shubland found primarily in the South-Western United States and Mexico. Fire plays a predominant role in the life-cycle of the plants in this area - the seeds of which will sprout only after a fire.
Antarctica
Chaparral
Ecology
Denitrification
21. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Ecological Niche
Keystone Species
Eukaryotes
Tropical Rain Forest
22. An agency created to establish regulations concerning pollutants to protect humans and the environment.
Ecological Niche
Producers
Homo Sapiens
Environmental Protection Agency
23. A partially enclosed part of the ocean with rivers or streams flowing into it.
Producers
Interplanting
Estuary
Hetrotrophs
24. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Grasslands
Sublimation
Keystone Species
Snowmelt
25. Organisms which thrive in low nutrient environments and usually have slow growth rates.
Cosmetic Spraying
Neanderthals
Mesosphere
Oligotrophs
26. Animals which eat grass and roots.
Grazers
Biogeochemical Cycle
Hydrosphere
Lithosphere
27. Modern man.
Brackish Water
Homo Sapiens
Denitrification
Commensalism
28. A layer of gasses surrounding the earth.
World Trade Organization
Consumers
Atmosphere
Trophic Level
29. The crust and upper mantle of the earth.
Atmosphere
Lithosphere
Copiotrophs
Cosmetic Spraying
30. An influential book by Rachel Carson which helped begin the environmental movement.
Detrivores
Autotrophs
Silent Spring
Clean Air Act
31. A type of symbiosis where one species will benefit while the other will be neither benefit or be harmed.
Nitrous Oxide
Carbon Dioxide
Commensalism
Montreal Protocol
32. The uppermost atmospheric layer. Here satellites orbit the earth.
Exosphere
Nitrous Oxide
Cosmetic Spraying
K-Selected Populations
33. All members of a species which live in the same area.
Population
Air Pollution
Biodiversity
K-Selected Populations
34. The flow of water in the water table.
R-Selected Populations
Ecosystem
Subsurface flow
Atmosphere
35. An act which required the EPA to set standards for drinking water.
Precipitation
Safe Drinking Water Act
Copiotrophs
Ecological Niche
36. An American environmentalist who is famous for promoting the ideas of environmental ethics and wildlife management.
Coniferous Forest
Browsers
Air Pollution
Aldo Leopold
37. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
Subsistence Farming
Ammonification
Harmful Algal Bloom
Toxic Substances Control Act
38. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Grasslands
Neanderthals
Temperature Inversion
Species
39. The process by which pollutants are carried by flowing water - such as a river.
Omnivores
Chaparral
Advection
Harmful Algal Bloom
40. A forest characterized by clearly differentiated seasons - such as the trees loosing leaves in the fall and heavy snowfall in the winter.
Taiga
Agroforestry
Deciduous Forest
Coevolution
41. Plants taking in nitrates from the soil.
Alley Cropping
Evaporation
Assimilation
Hydrosphere
42. 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.
Turbidity
Australopithecus Afarensis
Tropopause
Coniferous Forest
43. All of the water found on earth.
Advection
Hydrosphere
Earth Summit
Agroforestry
44. 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.
Superfund Law
Symbiosis
Deserts
Speciation
45. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Browsers
Thermosphere
Deserts
Gross Primary Product
46. The process by which the sun's energy converts liquid water to water vapor in the atmosphere.
Sahelanthropus Tchadensis
Shifting Agriculture
Evaporation
Assimilation
47. The process of a gas transforming into a liquid.
Environmental Ethics
Precipitation
Condensation
Montreal Protocol
48. Animals which eat leaves and shoots.
Agroforestry
Browsers
Homo Erectus
Ecotone
49. Consumers which eat decomposing organic material.
Detrivores
Precipitation
Ozone
Social Ecology
50. Political organizations not affiliated with the government which try to bring about social change.
Non-government Organizations
Agroforestry
Nitrogen Fixation
Omnivores