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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.
Grasslands
Hydrosphere
Nitrous Oxide
K-Selected Populations
2. Evolution in one organism due to change in a related organism.
Coevolution
Kyoto Protocol
Estuary
Interplanting
3. 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.
Eukaryotes
Deserts
Denitrification
Mesosphere
4. 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.
Infiltration
Eutrophication
Wilderness Act
Consumers
5. Organisms which thrive in low nutrient environments and usually have slow growth rates.
Oligotrophs
Subsistence Farming
Environmental Ethics
Producers
6. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.
Wilderness Act
Subsurface flow
Superfund Law
Agroforestry
7. Integrating rows of trees alongside crops to provide mulch and shade - retain water in the soil - and promote sustainable land use.
Silent Spring
Agroforestry
Browsers
Nitrification
8. A group of similar organisms capable of interbreeding.
Autotrophs
Resource Partitioning
Total Fertility Rate
Species
9. The process by which certain kinds of bacteria convert atmospheric nitrogen gas into ammonia - a form accessible to living creatures.
Keystone Species
Earth Summit
Total Fertility Rate
Nitrogen Fixation
10. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Ecological Niche
Ammonification
Advection
Temperate Rain Forest
11. The flow of water in the water table.
Subsurface flow
Stratosphere
Deciduous Forest
Air Pollution
12. The crust and upper mantle of the earth.
Lithosphere
Biogeochemical Cycle
Assimilation
Alley Cropping
13. A community of similar living organisms largely affected by the area's climate.
Carnivores
Biomes
National Environmental Policy Act
Cosmetic Spraying
14. An influential book by Rachel Carson which helped begin the environmental movement.
Silent Spring
Kyoto Protocol
Stockholm Conference
Biomes
15. Growing more than one crop at a time.
Polyculture
Precipitation
Homo Habilis
Earth Summit
16. Consumers which eat only other animals.
Competitive Exclusion
Parasitism
Carnivores
Subsurface flow
17. The position of an organism on the food chain.
Evaporation
Trophic Level
Brackish Water
Clean Air Act
18. 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
Omnivores
Tundra
Atmosphere
19. The process by which pollutants are carried by flowing water - such as a river.
Mutualism
Population
Lithosphere
Advection
20. An act which protects certain lands as national parks.
Interception
Wilderness Act
Nitrification
R-Selected Populations
21. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Lithosphere
Speciation
Troposphere
Surface Run-Off
22. Different species living in close contact with each other.
Condensation
Autotrophs
Harmful Algal Bloom
Symbiosis
23. Organisms which eat other organisms.
Infiltration
Consumers
Mesosphere
Agroforestry
24. The loss of water vapor from leaves.
Superfund Law
Stratosphere
Transpiration
Subsurface flow
25. The amount of pests needed before spraying pesticides is economical.
Tundra
Agroforestry
Economic Threshold
Ecosystem
26. 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
Tropical Rain Forest
Detrivores
Gross Primary Product
27. Organisms which consume autotrophs for food.
Savannah
Hetrotrophs
Homo Habilis
Prokaryotes
28. 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.
Clean Air Act
Chaparral
Sahelanthropus Tchadensis
Tropical Rain Forest
29. 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.
World Trade Organization
Ozone
Infiltration
Trophic Level
30. 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.
Mutualism
Competitive Exclusion
Prokaryotes
Environmental Ethics
31. Organisms which produce their own food.
Estuary
Economic Threshold
Autotrophs
Hetrotrophs
32. All members of a species which live in the same area.
Earth Summit
Mutualism
Population
Troposphere
33. An international convention which created the framework for protecting the ozone layer.
Vienna Convention for the Protection of the Ozone Layer
Savannah
Endangered Species Act
Cosmetic Spraying
34. Single-celled organisms which lack a nucleus.
Wildlife Management
Kyoto Protocol
Biosphere
Prokaryotes
35. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Clean Air Act
Snowmelt
Thermosphere
Kyoto Protocol
36. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Sublimation
Wilderness Act
Troposphere
Environmental Protection Agency
37. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Turbidity
Ecotone
Symbiosis
Evapotranspiration
38. A transitional area between two different ecosystems.
Acid Rain
Biogeochemical Cycle
Ecotone
Australopithecus Afarensis
39. 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.
Grazers
Biodiversity
UN Conference on Population and Development
Brackish Water
40. An act which set standards for the amount of pollution in water.
Taiga
Montreal Protocol
Water Pollution Control Act
Sahelanthropus Tchadensis
41. Growing only one crop at a time.
Infiltration
Sahelanthropus Tchadensis
Monoculture
Denitrification
42. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.
Montreal Protocol
Economic Threshold
Tropical Rain Forest
Carbon Dioxide
43. The conversion of nitrates into nitrogen gas.
Denitrification
Evaporation
Safe Drinking Water Act
Ozone
44. 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.
Nitrous Oxide
Tropical Rain Forest
Air Pollution
Lithosphere
45. Consumers which eat both plants and animals.
Precipitation
Troposphere
Omnivores
Surface Run-Off
46. A type of farming where the farmer will grow just enough crops to satisfy his family's needs for the next year.
Tropopause
Subsistence Farming
Hydrologic Cycle
Air Pollution
47. A layer of gasses surrounding the earth.
Sahelanthropus Tchadensis
Atmosphere
Social Ecology
Biosphere
48. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Keystone Species
Neanderthals
Indicator Species
Total Fertility Rate
49. The process by which the sun's energy converts liquid water to water vapor in the atmosphere.
Homo Habilis
Troposphere
Ecological Niche
Evaporation
50. The spraying of pesticides to prevent a pest problem before it happens.
Subsistence Farming
Oligotrophs
Population
Insurance Spraying