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Test your basic knowledge |
DSST Environment And Humanity
Start Test
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Subjects
:
dsst
,
science
Instructions:
Answer 50 questions in 15 minutes.
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.
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. An international convention which created the framework for protecting the ozone layer.
Vienna Convention for the Protection of the Ozone Layer
Coniferous Forest
Eukaryotes
Montreal Protocol
2. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Oligotrophs
Thermosphere
Grazers
Homo Habilis
3. A greenhouse gas which also plays a key role in regulating ozone levels.
Ecology
Hetrotrophs
Nitrous Oxide
Oligotrophs
4. An act which set standards for the amount of pollution in water.
Grazers
Carnivores
Water Pollution Control Act
Clean Air Act
5. The amount of pests needed before spraying pesticides is economical.
Shifting Agriculture
Evapotranspiration
Economic Threshold
Biomes
6. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Tundra
Autotrophs
Keystone Species
Total Fertility Rate
7. Organisms which eat other organisms.
Consumers
Environmental Protection Agency
Tropical Rain Forest
Silent Spring
8. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.
Silent Spring
Brackish Water
Browsers
Coevolution
9. 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.
Ecology
Nitrous Oxide
Coniferous Forest
Biodiversity
10. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Coevolution
Grasslands
Subsurface flow
Brackish Water
11. 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.
Trophic Level
Exosphere
Grazers
Competitive Exclusion
12. A situation where a layer of warmer air traps lower - cooler air - causing pollution to collect near the ground.
Producers
Interplanting
Temperature Inversion
Oligotrophs
13. The process of planting different plant species right next to each other to maximize one's yield.
Non-government Organizations
Nitrification
Interplanting
Antarctica
14. The process of a gas transforming into a liquid.
Condensation
Stratosphere
Detrivores
Nitrification
15. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.
Assimilation
Keystone Species
Alley Cropping
Superfund Law
16. The UN's first major conference on environmental issues.
Ecotone
Silent Spring
Stockholm Conference
Exosphere
17. Plants taking in nitrates from the soil.
Assimilation
Hydrologic Cycle
Biomes
Interplanting
18. The middle atmospheric layer. Meteors burn up after entering this layer.
Transpiration
Harmful Algal Bloom
Savannah
Mesosphere
19. Organisms which create their own food out of inorganic (abiotic) substances.
Hetrotrophs
Precipitation
Producers
Wildlife Management
20. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.
Deciduous Forest
Montreal Protocol
Wildlife Management
Australopithecus Afarensis
21. The study of the interaction between organisms and their environment.
Ecology
Brackish Water
Eukaryotes
Homo Habilis
22. 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
Stratosphere
Advection
Vienna Convention for the Protection of the Ozone Layer
Antarctica
23. A UN conference that addressed the growing population problem.
Biogeochemical Cycle
UN Conference on Population and Development
Detrivores
Endangered Species Act
24. The process by which pollutants are carried by flowing water - such as a river.
Producers
Keystone Species
Advection
Precipitation
25. The spraying of pesticides to prevent a pest problem before it happens.
Insurance Spraying
Deserts
Homo Erectus
Shifting Agriculture
26. A community of species interacting with their nonliving (abiotic) environment.
Atmosphere
Air Pollution
Wilderness Act
Ecosystem
27. The coexistence of two species using the same resource where the two will use the resource in different ways.
Atmosphere
Symbiosis
Grasslands
Resource Partitioning
28. Organisms which produce their own food.
Eukaryotes
Silent Spring
Transpiration
Autotrophs
29. An influential book by Rachel Carson which helped begin the environmental movement.
Silent Spring
Wildlife Management
Gross Primary Product
Chaparral
30. A type of symbiosis where one species benefit at the expense of the other.
Parasitism
Condensation
Interplanting
Homo Sapiens
31. An extinct hominid species believed to be the last common ancestor between man and apes.
Alley Cropping
Sahelanthropus Tchadensis
Interplanting
Autotrophs
32. A type of farming where the farmer will grow just enough crops to satisfy his family's needs for the next year.
Earth Summit
World Trade Organization
Subsistence Farming
Intensive Subsistence Farming
33. A variety of species living together.
Browsers
Community
Social Ecology
Carbon Dioxide
34. A transitional area between two different ecosystems.
Non-government Organizations
Monoculture
Brackish Water
Ecotone
35. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Thermosphere
Commensalism
Sublimation
Infiltration
36. Animals which eat grass and roots.
Toxic Substances Control Act
Carbon Dioxide
Grazers
Coevolution
37. A rainforest in the temperate zone which receives heavy rainfall.
Mutualism
Superfund Law
Temperate Rain Forest
Thermosphere
38. Organisms which thrive in low nutrient environments and usually have slow growth rates.
Environmental Protection Agency
Denitrification
Interplanting
Oligotrophs
39. An act which established and enforced acceptable levels of air pollution.
Clean Air Act
Neanderthals
Speciation
Subsurface flow
40. 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
Speciation
Producers
Infiltration
41. An act which protects certain lands as national parks.
Homo Habilis
Water Pollution Control Act
Transpiration
Wilderness Act
42. Also called that water cycle - this process describes the cycling of water throughout the environment. The stages of this cycle are evaporation - condensation - transportation - precipitation - infiltration and percolation - and run off.
Hydrologic Cycle
Ecosystem
Thermosphere
R-Selected Populations
43. A forest characterized by clearly differentiated seasons - such as the trees loosing leaves in the fall and heavy snowfall in the winter.
Evapotranspiration
Deciduous Forest
Lithosphere
Symbiosis
44. An act which required the EPA to set standards for drinking water.
Ecosystem
Safe Drinking Water Act
Omnivores
Trophic Level
45. Consumers which eat decomposing organic material.
Atmosphere
Total Fertility Rate
Snowmelt
Detrivores
46. A group of similar organisms capable of interbreeding.
Wilderness Act
Species
Indicator Species
Environmental Ethics
47. An international organization designed to promote free trade between countries.
Safe Drinking Water Act
Savannah
Exosphere
World Trade Organization
48. An act created to protect endangered and threatened species.
Polyculture
Species
Deciduous Forest
Endangered Species Act
49. 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.
Exosphere
Montreal Protocol
Species
Biodiversity
50. 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
R-Selected Populations
Neanderthals
Lithosphere
Air Pollution
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