SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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 process by which the sun's energy converts liquid water to water vapor in the atmosphere.
Evaporation
Intensive Subsistence Farming
K-Selected Populations
Species
2. An international protocol designed to stabilize global warming.
Kyoto Protocol
Australopithecus Afarensis
Brackish Water
Social Ecology
3. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Montreal Protocol
Grasslands
Temperate Rain Forest
Temperature Inversion
4. An international organization designed to promote free trade between countries.
Subsistence Farming
World Trade Organization
Advection
Insurance Spraying
5. An act which required the EPA to set standards for drinking water.
Temperature Inversion
Homo Sapiens
Wildlife Management
Safe Drinking Water Act
6. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Keystone Species
Homo Erectus
Tropical Rain Forest
Omnivores
7. A greenhouse gas which also plays a key role in regulating ozone levels.
Kyoto Protocol
Monoculture
Nitrous Oxide
Estuary
8. Animals which eat grass and roots.
Thermosphere
UN Conference on Population and Development
Agroforestry
Grazers
9. The cloudiness of a liquid due to small suspended particles.
Hetrotrophs
Prokaryotes
Turbidity
Producers
10. 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.
Hydrosphere
Symbiosis
Homo Erectus
Methane
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.
Polyculture
Wildlife Management
Montreal Protocol
Grazers
12. Any living thing on earth.
Tropopause
Neanderthals
Organism
Hydrologic Cycle
13. A variety of species living together.
Cosmetic Spraying
Mesosphere
Hetrotrophs
Community
14. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Ecological Niche
Homo Erectus
Deciduous Forest
Air Pollution
15. An agency created to establish regulations concerning pollutants to protect humans and the environment.
Homo Erectus
Environmental Protection Agency
Deserts
Grazers
16. A theory that our current ecological problems are a product of deeper social problems.
Australopithecus Afarensis
Social Ecology
Speciation
Stockholm Conference
17. Excess water which cannot be infiltrated into the soil and instead flows along the ground.
Species
Harmful Algal Bloom
Surface Run-Off
Precipitation
18. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.
Brackish Water
Water Pollution Control Act
Insurance Spraying
Thermosphere
19. Modern man.
Carbon Dioxide
Earth Summit
Homo Sapiens
Troposphere
20. Evolution in one organism due to change in a related organism.
Coevolution
Biogeochemical Cycle
Stockholm Conference
Earth Summit
21. The loss of water vapor from leaves.
Ozone
Biodiversity
Interplanting
Transpiration
22. All of the water found on earth.
Population
Australopithecus Afarensis
Ecology
Hydrosphere
23. An act created to protect endangered and threatened species.
R-Selected Populations
Endangered Species Act
Cosmetic Spraying
Nitrous Oxide
24. Species which react quickly to an environmental change and therefore can be used to diagnose a particular ecosystem.
Speciation
Organism
Monoculture
Indicator Species
25. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.
Clean Air Act
Savannah
Ammonification
Indicator Species
26. The spraying of pesticides to prevent a pest problem before it happens.
Antarctica
Homo Habilis
Earth Summit
Insurance Spraying
27. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Omnivores
Agroforestry
Neanderthals
Ammonification
28. The rate at which producers create organic material.
Transpiration
Gross Primary Product
Atmosphere
Resource Partitioning
29. Average expected birth rate for 1 -000 women.
Total Fertility Rate
Taiga
Superfund Law
Trophic Level
30. An act which set standards for the amount of pollution in water.
Social Ecology
Biodiversity
Water Pollution Control Act
Tropopause
31. Integrating rows of trees alongside crops to provide mulch and shade - retain water in the soil - and promote sustainable land use.
Stockholm Conference
UN Conference on Population and Development
Gross Primary Product
Agroforestry
32. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
Keystone Species
Biomes
Nitrification
Neanderthals
33. An act requiring federal agencies to detail the impact of proposed environmental policies.
Thermosphere
Interception
National Environmental Policy Act
Social Ecology
34. A partially enclosed part of the ocean with rivers or streams flowing into it.
Turbidity
Grazers
Wilderness Act
Estuary
35. Organisms with a nucleus.
Surface Run-Off
Homo Erectus
Mesosphere
Eukaryotes
36. Consumers which eat only other animals.
UN Conference on Population and Development
Parasitism
Environmental Protection Agency
Carnivores
37. 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.
Antarctica
Biogeochemical Cycle
Endangered Species Act
Biodiversity
38. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
Mesosphere
Mutualism
Transpiration
Toxic Substances Control Act
39. 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
Hetrotrophs
Australopithecus Afarensis
Sublimation
Air Pollution
40. The middle atmospheric layer. Meteors burn up after entering this layer.
Ecotone
Neanderthals
Superfund Law
Mesosphere
41. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Species
Hydrologic Cycle
Polyculture
Evapotranspiration
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.
Coniferous Forest
Interplanting
Assimilation
Vienna Convention for the Protection of the Ozone Layer
43. A rainforest in the temperate zone which receives heavy rainfall.
Total Fertility Rate
Temperate Rain Forest
Stratosphere
Evaporation
44. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Polyculture
Producers
Non-government Organizations
Thermosphere
45. A community of species interacting with their nonliving (abiotic) environment.
Ecosystem
Carbon Dioxide
Wildlife Management
Snowmelt
46. A type of farming where the farmer will grow just enough crops to satisfy his family's needs for the next year.
Trophic Level
Subsistence Farming
Sahelanthropus Tchadensis
Mesosphere
47. Different species living in close contact with each other.
Hydrosphere
Stockholm Conference
Homo Habilis
Symbiosis
48. Growing more than one crop at a time.
Advection
Taiga
Omnivores
Polyculture
49. An extinct hominid species believed to be the last common ancestor between man and apes.
Polyculture
Sahelanthropus Tchadensis
Lithosphere
Ecology
50. A type of symbiosis where one species benefit at the expense of the other.
Parasitism
Non-government Organizations
Stratosphere
Aldo Leopold