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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. Consumers which eat decomposing organic material.
Total Fertility Rate
Mutualism
Detrivores
Grazers
2. 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.
Species
Environmental Ethics
Evapotranspiration
Mesosphere
3. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
Carbon Dioxide
Neanderthals
Resource Partitioning
Toxic Substances Control Act
4. The study of the interaction between organisms and their environment.
K-Selected Populations
Consumers
Tropopause
Ecology
5. The process of a gas transforming into a liquid.
Deserts
Indicator Species
Condensation
Wilderness Act
6. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
Nitrification
Detrivores
Competitive Exclusion
Earth Summit
7. 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.
Assimilation
Biodiversity
Wildlife Management
Condensation
8. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.
Biogeochemical Cycle
Subsurface flow
Temperature Inversion
Antarctica
9. An act created to protect endangered and threatened species.
Coevolution
Wilderness Act
Neanderthals
Endangered Species Act
10. The process of surface water entering the soil. This ensures that plants have adequate access to water.
Infiltration
Coniferous Forest
Biogeochemical Cycle
Advection
11. Organisms which consume autotrophs for food.
Ozone
Hetrotrophs
Montreal Protocol
Economic Threshold
12. All members of a species which live in the same area.
Keystone Species
Carnivores
Population
Prokaryotes
13. A community of similar living organisms largely affected by the area's climate.
Cosmetic Spraying
Nitrous Oxide
Biodiversity
Biomes
14. Surface run-off caused by melted snow.
K-Selected Populations
Snowmelt
Monoculture
Nitrification
15. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Troposphere
Economic Threshold
Montreal Protocol
Precipitation
16. 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.
Hydrologic Cycle
Nitrogen Fixation
Tropical Rain Forest
Silent Spring
17. A situation where a layer of warmer air traps lower - cooler air - causing pollution to collect near the ground.
Temperature Inversion
National Environmental Policy Act
Atmosphere
Assimilation
18. An international convention which created the framework for protecting the ozone layer.
Detrivores
Agroforestry
Thermosphere
Vienna Convention for the Protection of the Ozone Layer
19. 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.
Copiotrophs
Indicator Species
Economic Threshold
Hydrologic Cycle
20. 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
Tropical Rain Forest
Monoculture
Cosmetic Spraying
21. The position of an organism on the food chain.
Keystone Species
Trophic Level
Evapotranspiration
Ammonification
22. The process by which certain kinds of bacteria convert atmospheric nitrogen gas into ammonia - a form accessible to living creatures.
Indicator Species
Nitrogen Fixation
Clean Air Act
Eukaryotes
23. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.
Advection
Brackish Water
Water Pollution Control Act
Denitrification
24. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.
Montreal Protocol
Stockholm Conference
Omnivores
Silent Spring
25. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Evaporation
Social Ecology
Thermosphere
Ecological Niche
26. The crust and upper mantle of the earth.
Taiga
Lithosphere
Shifting Agriculture
Species
27. Organisms which eat other organisms.
Eutrophication
Grazers
Monoculture
Consumers
28. 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.
Competitive Exclusion
World Trade Organization
Estuary
Stratosphere
29. 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
Ozone
Intensive Subsistence Farming
Commensalism
30. Average expected birth rate for 1 -000 women.
Monoculture
Total Fertility Rate
Tundra
Silent Spring
31. A type of symbiosis where each species will benefit from interacting with the other.
Mutualism
Atmosphere
Autotrophs
Troposphere
32. The cloudiness of a liquid due to small suspended particles.
Coniferous Forest
Keystone Species
Parasitism
Turbidity
33. The loss of water vapor from leaves.
Transpiration
Coniferous Forest
Environmental Protection Agency
Stockholm Conference
34. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Condensation
Homo Habilis
Estuary
Troposphere
35. 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.
Water Pollution Control Act
Eutrophication
Tropopause
Kyoto Protocol
36. An act which required the EPA to set standards for drinking water.
Brackish Water
Safe Drinking Water Act
Gross Primary Product
Nitrification
37. Species which react quickly to an environmental change and therefore can be used to diagnose a particular ecosystem.
K-Selected Populations
Wildlife Management
Subsistence Farming
Indicator Species
38. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Australopithecus Afarensis
Coevolution
Deciduous Forest
Stockholm Conference
39. The process by which pollutants are carried by flowing water - such as a river.
Mesosphere
Biomes
Advection
Temperature Inversion
40. 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.
Indicator Species
Deserts
Biogeochemical Cycle
Economic Threshold
41. An agency created to establish regulations concerning pollutants to protect humans and the environment.
Autotrophs
Earth Summit
Environmental Protection Agency
Insurance Spraying
42. A UN conference held in Rio de Janeiro. The conference decided to protect biodiversity - reduce pollution emissions and greenhouse gasses - and promote sustainable development.
Thermosphere
National Environmental Policy Act
Earth Summit
Chaparral
43. The amount of pests needed before spraying pesticides is economical.
Consumers
Economic Threshold
Denitrification
Taiga
44. An act which established and enforced acceptable levels of air pollution.
Mesosphere
Brackish Water
Acid Rain
Clean Air Act
45. Growing only one crop at a time.
Omnivores
Oligotrophs
K-Selected Populations
Monoculture
46. 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
Deciduous Forest
Ozone
Water Pollution Control Act
Air Pollution
47. The uppermost atmospheric layer. Here satellites orbit the earth.
Neanderthals
Detrivores
Omnivores
Exosphere
48. All of the water found on earth.
Hydrosphere
Eutrophication
Environmental Ethics
Troposphere
49. Different species living in close contact with each other.
Mesosphere
Symbiosis
Grazers
Ecotone
50. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Stratosphere
Keystone Species
Nitrification
Grasslands