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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. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
Savannah
Mutualism
Toxic Substances Control Act
Air Pollution
2. Evolution in one organism due to change in a related organism.
Clean Air Act
Water Pollution Control Act
Snowmelt
Coevolution
3. Biomes far north in North America - Europe - and Asia which - due to very low temperatures - cannot support tree growth.
Monoculture
Denitrification
Ozone
Tundra
4. 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.
National Environmental Policy Act
Carnivores
Ozone
Biomes
5. 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.
Stockholm Conference
Economic Threshold
Biodiversity
Deserts
6. Organisms which thrive in high nutrient environments - especially those with plenty of carbon.
Tundra
Biomes
Copiotrophs
Temperate Rain Forest
7. 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.
Detrivores
Tundra
Hydrologic Cycle
Trophic Level
8. The crust and upper mantle of the earth.
Biomes
Lithosphere
Assimilation
Deciduous Forest
9. Plants taking in nitrates from the soil.
Subsistence Farming
Environmental Ethics
Assimilation
Brackish Water
10. Animals which eat grass and roots.
Environmental Protection Agency
Grazers
Subsistence Farming
Eukaryotes
11. The process of surface water entering the soil. This ensures that plants have adequate access to water.
World Trade Organization
Agroforestry
Chaparral
Infiltration
12. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Montreal Protocol
Interplanting
Neanderthals
Taiga
13. Excess water which cannot be infiltrated into the soil and instead flows along the ground.
Community
Surface Run-Off
UN Conference on Population and Development
Troposphere
14. The process of planting different plant species right next to each other to maximize one's yield.
Nitrogen Fixation
Interplanting
Homo Habilis
Silent Spring
15. A community of species interacting with their nonliving (abiotic) environment.
Ecosystem
Total Fertility Rate
Hydrosphere
Water Pollution Control Act
16. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Commensalism
Copiotrophs
Troposphere
Temperate Rain Forest
17. All members of a species which live in the same area.
Tropical Rain Forest
Savannah
Population
Species
18. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.
Ammonification
Evapotranspiration
Antarctica
Eutrophication
19. A UN conference that addressed the growing population problem.
Gross Primary Product
UN Conference on Population and Development
Deserts
Water Pollution Control Act
20. 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.
Ammonification
Endangered Species Act
Keystone Species
Wildlife Management
21. The flow of water in the water table.
Aldo Leopold
Subsurface flow
Ecology
Alley Cropping
22. 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.
Homo Erectus
Estuary
K-Selected Populations
Homo Habilis
23. Organisms with a nucleus.
Air Pollution
Clean Air Act
Eukaryotes
Temperature Inversion
24. An international organization designed to promote free trade between countries.
Organism
Interception
World Trade Organization
Agroforestry
25. A layer of gasses surrounding the earth.
Coniferous Forest
Savannah
Eukaryotes
Atmosphere
26. The UN's first major conference on environmental issues.
Interplanting
Stockholm Conference
Trophic Level
Economic Threshold
27. A greenhouse gas which also plays a key role in regulating ozone levels.
Montreal Protocol
Snowmelt
Economic Threshold
Nitrous Oxide
28. The middle atmospheric layer. Meteors burn up after entering this layer.
Assimilation
Taiga
Mesosphere
Monoculture
29. The cloudiness of a liquid due to small suspended particles.
Grasslands
Turbidity
Brackish Water
Homo Habilis
30. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Biomes
Precipitation
Savannah
Eukaryotes
31. A type of farming where the farmer will grow crops both to fulfill his family's needs for the next year and to sell on the market.
Intensive Subsistence Farming
Insurance Spraying
Assimilation
Economic Threshold
32. The process of planting trees in between other crops.
Autotrophs
Hetrotrophs
Monoculture
Alley Cropping
33. Consumers which eat only other animals.
Precipitation
Coevolution
Carnivores
R-Selected Populations
34. Organisms which eat other organisms.
Consumers
Antarctica
Nitrous Oxide
Homo Habilis
35. Any living thing on earth.
Homo Erectus
Non-government Organizations
Organism
Total Fertility Rate
36. Political organizations not affiliated with the government which try to bring about social change.
Tropical Rain Forest
Monoculture
Nitrogen Fixation
Non-government Organizations
37. The position of an organism on the food chain.
Denitrification
Trophic Level
Exosphere
Resource Partitioning
38. A situation where a layer of warmer air traps lower - cooler air - causing pollution to collect near the ground.
Autotrophs
Temperature Inversion
Subsurface flow
Advection
39. 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.
Chaparral
Biodiversity
Hydrologic Cycle
Vienna Convention for the Protection of the Ozone Layer
40. A group of similar organisms capable of interbreeding.
Mutualism
Endangered Species Act
Species
Kyoto Protocol
41. The spraying of pesticides to prevent a pest problem before it happens.
Insurance Spraying
Biogeochemical Cycle
Browsers
National Environmental Policy Act
42. 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.
Ozone
Chaparral
Atmosphere
Tropical Rain Forest
43. The coexistence of two species using the same resource where the two will use the resource in different ways.
Mesosphere
Ecotone
Resource Partitioning
Homo Habilis
44. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Keystone Species
Assimilation
Deciduous Forest
Precipitation
45. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Tropopause
Temperate Rain Forest
Mesosphere
Hydrosphere
46. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Insurance Spraying
Cosmetic Spraying
Evapotranspiration
Wilderness Act
47. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.
Biogeochemical Cycle
Community
Assimilation
Cosmetic Spraying
48. A type of symbiosis where each species will benefit from interacting with the other.
Indicator Species
Interception
Chaparral
Mutualism
49. 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
Air Pollution
Troposphere
Tundra
Shifting Agriculture
50. An act which protects certain lands as national parks.
Wilderness Act
Organism
Assimilation
Air Pollution