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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. Animals which eat grass and roots.
Grazers
Gross Primary Product
Advection
Brackish Water
2. The cloudiness of a liquid due to small suspended particles.
World Trade Organization
Biodiversity
Surface Run-Off
Turbidity
3. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Keystone Species
Copiotrophs
Thermosphere
Ozone
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.
Sublimation
Taiga
Thermosphere
Snowmelt
5. Consumers which eat both plants and animals.
Grasslands
Omnivores
Taiga
Trophic Level
6. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Australopithecus Afarensis
Detrivores
Grazers
Turbidity
7. 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.
Monoculture
Endangered Species Act
Acid Rain
Biodiversity
8. 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.
Autotrophs
Superfund Law
Methane
Carbon Dioxide
9. Growing only one crop at a time.
Precipitation
Aldo Leopold
Monoculture
Insurance Spraying
10. The loss of water vapor from leaves.
Monoculture
Environmental Ethics
Transpiration
Symbiosis
11. 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.
Biomes
Homo Habilis
Montreal Protocol
Wildlife Management
12. The uppermost atmospheric layer. Here satellites orbit the earth.
Exosphere
Advection
Surface Run-Off
Temperate Rain Forest
13. An agency created to establish regulations concerning pollutants to protect humans and the environment.
Kyoto Protocol
Mesosphere
Temperate Rain Forest
Environmental Protection Agency
14. An unstable form of oxygen which protects the earth from UV radiation. Although naturally occurring in the stratosphere (upper atmosphere) - in the lower atmosphere this gas acts as a pollutant.
Ozone
Indicator Species
Detrivores
Symbiosis
15. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Troposphere
Tropical Rain Forest
K-Selected Populations
Advection
16. The process of planting different plant species right next to each other to maximize one's yield.
Monoculture
Wildlife Management
Interplanting
Exosphere
17. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Species
Monoculture
Producers
Grasslands
18. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.
Thermosphere
Evaporation
Deciduous Forest
Superfund Law
19. Organisms which produce their own food.
Carbon Dioxide
Symbiosis
Ammonification
Autotrophs
20. A type of farming where the farmer will grow just enough crops to satisfy his family's needs for the next year.
Savannah
Evaporation
Transpiration
Subsistence Farming
21. An extinct hominid species believed to be the last common ancestor between man and apes.
Savannah
Nitrous Oxide
Sahelanthropus Tchadensis
Kyoto Protocol
22. The process by which pollutants are carried by flowing water - such as a river.
Prokaryotes
Oligotrophs
Coevolution
Advection
23. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Environmental Protection Agency
Sublimation
Vienna Convention for the Protection of the Ozone Layer
Evapotranspiration
24. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
Homo Erectus
Interplanting
Nitrification
Eukaryotes
25. A UN conference that addressed the growing population problem.
Tundra
UN Conference on Population and Development
Safe Drinking Water Act
Grasslands
26. A layer of gasses surrounding the earth.
Denitrification
Autotrophs
Atmosphere
Indicator Species
27. The coexistence of two species using the same resource where the two will use the resource in different ways.
Homo Habilis
Resource Partitioning
Detrivores
Temperate Rain Forest
28. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Nitrogen Fixation
Ecological Niche
Environmental Protection Agency
Brackish Water
29. A UN conference held in Rio de Janeiro. The conference decided to protect biodiversity - reduce pollution emissions and greenhouse gasses - and promote sustainable development.
Sublimation
Superfund Law
Earth Summit
Mesosphere
30. An act which established and enforced acceptable levels of air pollution.
Kyoto Protocol
Clean Air Act
Wilderness Act
Temperature Inversion
31. Consumers which eat decomposing organic material.
Social Ecology
Detrivores
Omnivores
Ecological Niche
32. The position of an organism on the food chain.
Gross Primary Product
Advection
Trophic Level
Denitrification
33. 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
Temperature Inversion
Eutrophication
Clean Air Act
34. A rainforest in the temperate zone which receives heavy rainfall.
Turbidity
Economic Threshold
Temperate Rain Forest
Toxic Substances Control Act
35. A variety of species living together.
Tropical Rain Forest
Community
Social Ecology
Biodiversity
36. The spraying of pesticides to prevent a pest problem before it happens.
Insurance Spraying
Gross Primary Product
Stratosphere
Toxic Substances Control Act
37. An international convention which created the framework for protecting the ozone layer.
Vienna Convention for the Protection of the Ozone Layer
Gross Primary Product
Subsistence Farming
Lithosphere
38. An extinct hominid species believed to have long - ape-like arms; have a brain capacity half that of modern men; and use primitive tools.
Homo Habilis
Species
Total Fertility Rate
Endangered Species Act
39. Organisms with a nucleus.
Oligotrophs
Community
Montreal Protocol
Eukaryotes
40. A greenhouse gas which also plays a key role in regulating ozone levels.
Biodiversity
Nitrous Oxide
Tropical Rain Forest
Hydrologic Cycle
41. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.
Troposphere
Denitrification
Deserts
Brackish Water
42. Animals which eat leaves and shoots.
Browsers
Thermosphere
Symbiosis
Non-government Organizations
43. The infiltration of harmful chemicals - particles - or biological matter into the atmosphere which endanger living organisms. Pollutants include sulfur and nitrogen oxides - ammonia - and chlorofluorocarbons. Although there are natural sources for th
Total Fertility Rate
Air Pollution
Parasitism
World Trade Organization
44. An act requiring federal agencies to detail the impact of proposed environmental policies.
National Environmental Policy Act
Copiotrophs
Tropopause
Species
45. The crust and upper mantle of the earth.
Intensive Subsistence Farming
Browsers
Mutualism
Lithosphere
46. Average expected birth rate for 1 -000 women.
Wildlife Management
Total Fertility Rate
Surface Run-Off
Mesosphere
47. Political organizations not affiliated with the government which try to bring about social change.
Nitrogen Fixation
Eutrophication
Carbon Dioxide
Non-government Organizations
48. 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.
Copiotrophs
Competitive Exclusion
Acid Rain
Neanderthals
49. Consumers which eat only other animals.
Prokaryotes
Neanderthals
Carnivores
Tundra
50. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Tropical Rain Forest
Hetrotrophs
Precipitation
Eutrophication