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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. Organisms which produce their own food.
Eukaryotes
Detrivores
Autotrophs
Biomes
2. The flow of water in the water table.
Subsurface flow
R-Selected Populations
Wilderness Act
UN Conference on Population and Development
3. Animals which eat leaves and shoots.
Sublimation
Producers
Browsers
Detrivores
4. 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.
Brackish Water
Speciation
Commensalism
Estuary
5. A forest characterized by clearly differentiated seasons - such as the trees loosing leaves in the fall and heavy snowfall in the winter.
Deciduous Forest
Brackish Water
Parasitism
Wildlife Management
6. An influential book by Rachel Carson which helped begin the environmental movement.
Aldo Leopold
Silent Spring
Methane
Total Fertility Rate
7. The study of the interaction between organisms and their environment.
Troposphere
Superfund Law
Agroforestry
Ecology
8. An act requiring federal agencies to detail the impact of proposed environmental policies.
Biomes
Aldo Leopold
National Environmental Policy Act
Wildlife Management
9. An American environmentalist who is famous for promoting the ideas of environmental ethics and wildlife management.
Surface Run-Off
Acid Rain
Mesosphere
Aldo Leopold
10. A UN conference held in Rio de Janeiro. The conference decided to protect biodiversity - reduce pollution emissions and greenhouse gasses - and promote sustainable development.
Earth Summit
Troposphere
Eukaryotes
Detrivores
11. Organisms which thrive in low nutrient environments and usually have slow growth rates.
Oligotrophs
Species
Stratosphere
Silent Spring
12. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Copiotrophs
Polyculture
Ecology
Troposphere
13. A community of similar living organisms largely affected by the area's climate.
Community
Sublimation
Social Ecology
Biomes
14. 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.
Biodiversity
Economic Threshold
Tundra
Acid Rain
15. Animals which eat grass and roots.
Subsistence Farming
Grazers
Thermosphere
Condensation
16. The amount of pests needed before spraying pesticides is economical.
Economic Threshold
Commensalism
Browsers
Hetrotrophs
17. The second atmospheric layer. The ozone layer is found here - increasing the temperature with altitude.
Biodiversity
Stratosphere
Copiotrophs
Water Pollution Control Act
18. An act which set standards for the amount of pollution in water.
Assimilation
Speciation
Water Pollution Control Act
Population
19. 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.
Symbiosis
Troposphere
Biomes
Wildlife Management
20. Species which react quickly to an environmental change and therefore can be used to diagnose a particular ecosystem.
Non-government Organizations
Indicator Species
Hydrosphere
Grasslands
21. The crust and upper mantle of the earth.
Carnivores
Ecosystem
Ammonification
Lithosphere
22. 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.
Aldo Leopold
Ozone
Species
Sahelanthropus Tchadensis
23. 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
Tundra
Condensation
Grasslands
24. An international organization designed to promote free trade between countries.
Superfund Law
World Trade Organization
Snowmelt
Species
25. The process by which certain kinds of bacteria convert atmospheric nitrogen gas into ammonia - a form accessible to living creatures.
Mutualism
Earth Summit
Toxic Substances Control Act
Nitrogen Fixation
26. A variety of species living together.
Shifting Agriculture
Community
Parasitism
Wildlife Management
27. 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.
Ecological Niche
Autotrophs
Air Pollution
Competitive Exclusion
28. A situation where a layer of warmer air traps lower - cooler air - causing pollution to collect near the ground.
Denitrification
Condensation
Temperature Inversion
Tropopause
29. A type of symbiosis where each species will benefit from interacting with the other.
Mutualism
Transpiration
Sahelanthropus Tchadensis
Population
30. Average expected birth rate for 1 -000 women.
Stockholm Conference
Total Fertility Rate
Indicator Species
Evapotranspiration
31. Plants taking in nitrates from the soil.
Superfund Law
Environmental Ethics
Assimilation
Tundra
32. The process by which the sun's energy converts liquid water to water vapor in the atmosphere.
Evaporation
Homo Sapiens
Copiotrophs
Browsers
33. 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.
Wilderness Act
Troposphere
Environmental Ethics
Cosmetic Spraying
34. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Shifting Agriculture
Agroforestry
Sublimation
Surface Run-Off
35. An especially potent greenhouse gas emitted during production and transportation of fossil fuels - decomposition of organic matter - and herds of livestock.
Symbiosis
Methane
Mesosphere
Safe Drinking Water Act
36. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Tropopause
Precipitation
Hydrologic Cycle
Australopithecus Afarensis
37. Single-celled organisms which lack a nucleus.
Prokaryotes
Condensation
Air Pollution
Biosphere
38. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.
Ammonification
Total Fertility Rate
Infiltration
R-Selected Populations
39. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.
Montreal Protocol
Ozone
Species
Nitrification
40. The process of planting different plant species right next to each other to maximize one's yield.
Polyculture
Lithosphere
Nitrous Oxide
Interplanting
41. 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.
Taiga
Indicator Species
Trophic Level
Hetrotrophs
42. All of the ecosystems on earth.
Insurance Spraying
Biosphere
Producers
Tundra
43. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.
Atmosphere
Superfund Law
Homo Erectus
Coevolution
44. Excess water which cannot be infiltrated into the soil and instead flows along the ground.
Wilderness Act
Estuary
Parasitism
Surface Run-Off
45. The spraying of pesticides to keep produce from any injuries or damage.
Thermosphere
Species
Cosmetic Spraying
Kyoto Protocol
46. The process by which pollutants are carried by flowing water - such as a river.
Nitrification
Brackish Water
Hydrosphere
Advection
47. Precipitation which does not reach the soil but is instead collected by plants.
Chaparral
Estuary
Interception
Subsistence Farming
48. Political organizations not affiliated with the government which try to bring about social change.
Non-government Organizations
Economic Threshold
Autotrophs
Commensalism
49. Consumers which eat only other animals.
Savannah
Grasslands
Browsers
Carnivores
50. Biomes far north in North America - Europe - and Asia which - due to very low temperatures - cannot support tree growth.
K-Selected Populations
Tundra
Grasslands
Safe Drinking Water Act