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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. The rate at which producers create organic material.
Antarctica
Brackish Water
Gross Primary Product
Chaparral
2. Consumers which eat both plants and animals.
Hydrologic Cycle
Omnivores
Assimilation
Lithosphere
3. A situation where a layer of warmer air traps lower - cooler air - causing pollution to collect near the ground.
Temperature Inversion
Biodiversity
Kyoto Protocol
K-Selected Populations
4. Populations characterized by large size - long lifespan - and few offspring.
Kyoto Protocol
K-Selected Populations
Methane
Ecology
5. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Aldo Leopold
Ecosystem
Acid Rain
Evapotranspiration
6. An extinct hominid species believed to be the last common ancestor between man and apes.
Homo Habilis
Sahelanthropus Tchadensis
Deciduous Forest
Surface Run-Off
7. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Surface Run-Off
Resource Partitioning
Environmental Protection Agency
Grasslands
8. A partially enclosed part of the ocean with rivers or streams flowing into it.
Grasslands
Competitive Exclusion
Estuary
Snowmelt
9. The flow of water in the water table.
Brackish Water
Copiotrophs
Subsurface flow
Methane
10. A type of farming where the farmer will grow just enough crops to satisfy his family's needs for the next year.
Keystone Species
Subsistence Farming
Organism
Producers
11. 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.
Subsurface flow
Wildlife Management
Deciduous Forest
Eukaryotes
12. The middle atmospheric layer. Meteors burn up after entering this layer.
Clean Air Act
Mesosphere
UN Conference on Population and Development
Estuary
13. 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.
Eutrophication
Silent Spring
Prokaryotes
Ozone
14. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
Nitrification
Intensive Subsistence Farming
Nitrogen Fixation
Community
15. The process of surface water entering the soil. This ensures that plants have adequate access to water.
Monoculture
Symbiosis
Infiltration
Temperature Inversion
16. An act which required the EPA to set standards for drinking water.
Denitrification
Parasitism
Safe Drinking Water Act
Consumers
17. A variety of species living together.
Earth Summit
Nitrogen Fixation
Community
National Environmental Policy Act
18. An act which protects certain lands as national parks.
Aldo Leopold
Wilderness Act
Browsers
Tropical Rain Forest
19. A greenhouse gas which also plays a key role in regulating ozone levels.
Water Pollution Control Act
Nitrous Oxide
Tundra
Endangered Species Act
20. The position of an organism on the food chain.
Trophic Level
Intensive Subsistence Farming
Alley Cropping
Keystone Species
21. An agency created to establish regulations concerning pollutants to protect humans and the environment.
Parasitism
Environmental Protection Agency
Wilderness Act
Hetrotrophs
22. 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.
Advection
Neanderthals
Taiga
Organism
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.
Sahelanthropus Tchadensis
Water Pollution Control Act
Commensalism
Tropical Rain Forest
24. An international protocol designed to stabilize global warming.
Ozone
Kyoto Protocol
Polyculture
Grazers
25. A rainforest in the temperate zone which receives heavy rainfall.
Temperate Rain Forest
Australopithecus Afarensis
Trophic Level
Economic Threshold
26. Excess water which cannot be infiltrated into the soil and instead flows along the ground.
Vienna Convention for the Protection of the Ozone Layer
Autotrophs
Surface Run-Off
Clean Air Act
27. Average expected birth rate for 1 -000 women.
Montreal Protocol
Deserts
Total Fertility Rate
K-Selected Populations
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.
Homo Sapiens
Tundra
Snowmelt
Competitive Exclusion
29. The process of a gas transforming into a liquid.
Condensation
Brackish Water
Troposphere
R-Selected Populations
30. An especially potent greenhouse gas emitted during production and transportation of fossil fuels - decomposition of organic matter - and herds of livestock.
Montreal Protocol
Eutrophication
Methane
Biodiversity
31. Plants taking in nitrates from the soil.
Assimilation
Brackish Water
Vienna Convention for the Protection of the Ozone Layer
Sahelanthropus Tchadensis
32. A transitional area between two different ecosystems.
Ecotone
Coniferous Forest
Denitrification
Resource Partitioning
33. Organisms which eat other organisms.
Eutrophication
Ozone
Consumers
Interception
34. An act requiring federal agencies to detail the impact of proposed environmental policies.
Carbon Dioxide
Biosphere
Deserts
National Environmental Policy Act
35. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.
K-Selected Populations
Biogeochemical Cycle
Grazers
Hydrosphere
36. Species which react quickly to an environmental change and therefore can be used to diagnose a particular ecosystem.
Methane
Stratosphere
Indicator Species
Turbidity
37. An extinct hominid species believed to have long - ape-like arms; have a brain capacity half that of modern men; and use primitive tools.
Snowmelt
Ecotone
Prokaryotes
Homo Habilis
38. The crust and upper mantle of the earth.
Interception
Nitrification
Kyoto Protocol
Lithosphere
39. Growing only one crop at a time.
Ecosystem
Sublimation
Condensation
Monoculture
40. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Tropical Rain Forest
Transpiration
Ecological Niche
Exosphere
41. A layer of gasses surrounding the earth.
Infiltration
Economic Threshold
Producers
Atmosphere
42. The UN's first major conference on environmental issues.
Stockholm Conference
Water Pollution Control Act
Ecology
Consumers
43. An act which set standards for the amount of pollution in water.
Symbiosis
Lithosphere
Water Pollution Control Act
Gross Primary Product
44. 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.
Estuary
Deciduous Forest
Detrivores
Deserts
45. Animals which eat leaves and shoots.
Subsistence Farming
Denitrification
Homo Habilis
Browsers
46. A community of species interacting with their nonliving (abiotic) environment.
Nitrification
Ecosystem
Cosmetic Spraying
Brackish Water
47. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Biodiversity
Eutrophication
Troposphere
Harmful Algal Bloom
48. Organisms which consume autotrophs for food.
Clean Air Act
Hetrotrophs
Hydrologic Cycle
Interplanting
49. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.
Sublimation
Oligotrophs
Mesosphere
Montreal Protocol
50. 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
Evaporation
Consumers
Superfund Law