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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. 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.
Earth Summit
Wildlife Management
Biogeochemical Cycle
Detrivores
2. 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.
Mutualism
Wildlife Management
Chaparral
Browsers
3. 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
Harmful Algal Bloom
Symbiosis
Savannah
4. The second atmospheric layer. The ozone layer is found here - increasing the temperature with altitude.
Turbidity
Stratosphere
Alley Cropping
Superfund Law
5. The cloudiness of a liquid due to small suspended particles.
Homo Sapiens
Water Pollution Control Act
Turbidity
Prokaryotes
6. An act which set standards for the amount of pollution in water.
Wilderness Act
Estuary
Commensalism
Water Pollution Control Act
7. An extinct hominid species believed to be the last common ancestor between man and apes.
Thermosphere
Insurance Spraying
Resource Partitioning
Sahelanthropus Tchadensis
8. An act which protects certain lands as national parks.
Carnivores
Wilderness Act
R-Selected Populations
Homo Erectus
9. Animals which eat leaves and shoots.
Transpiration
Browsers
Homo Erectus
Polyculture
10. Surface run-off caused by melted snow.
Community
Snowmelt
Ecological Niche
Agroforestry
11. An act requiring federal agencies to detail the impact of proposed environmental policies.
Speciation
Environmental Protection Agency
National Environmental Policy Act
Taiga
12. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Homo Sapiens
Savannah
Carnivores
Endangered Species Act
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.
Monoculture
Homo Erectus
Toxic Substances Control Act
Ozone
14. The process by which certain kinds of bacteria convert atmospheric nitrogen gas into ammonia - a form accessible to living creatures.
Safe Drinking Water Act
Autotrophs
Evaporation
Nitrogen Fixation
15. Evolution in one organism due to change in a related organism.
Trophic Level
Mesosphere
Eutrophication
Coevolution
16. A situation where a layer of warmer air traps lower - cooler air - causing pollution to collect near the ground.
Intensive Subsistence Farming
Eukaryotes
Sublimation
Temperature Inversion
17. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Mesosphere
Keystone Species
Thermosphere
Tropopause
18. Consumers which eat both plants and animals.
Omnivores
Condensation
Population
Gross Primary Product
19. A forest characterized by clearly differentiated seasons - such as the trees loosing leaves in the fall and heavy snowfall in the winter.
Temperature Inversion
Sublimation
Deciduous Forest
Wilderness Act
20. A greenhouse gas. Although it is a natural part of the carbon cycle - the atmospheric concentration of this gas has increased due to the burning of fossil fuels.
Oligotrophs
Carbon Dioxide
Prokaryotes
Deserts
21. Organisms which thrive in high nutrient environments - especially those with plenty of carbon.
Copiotrophs
Shifting Agriculture
Acid Rain
Silent Spring
22. The process of surface water entering the soil. This ensures that plants have adequate access to water.
Earth Summit
Surface Run-Off
Infiltration
Ozone
23. A community of similar living organisms largely affected by the area's climate.
Biomes
Harmful Algal Bloom
Air Pollution
Resource Partitioning
24. The flow of water in the water table.
Tropical Rain Forest
Subsurface flow
Homo Erectus
Oligotrophs
25. A transitional area between two different ecosystems.
Economic Threshold
Ecotone
Resource Partitioning
Sahelanthropus Tchadensis
26. The position of an organism on the food chain.
Biosphere
Trophic Level
Species
Cosmetic Spraying
27. Organisms which consume autotrophs for food.
Estuary
Intensive Subsistence Farming
Stratosphere
Hetrotrophs
28. A type of symbiosis where each species will benefit from interacting with the other.
Hydrologic Cycle
Intensive Subsistence Farming
Safe Drinking Water Act
Mutualism
29. An act created to protect endangered and threatened species.
Endangered Species Act
Agroforestry
K-Selected Populations
Biodiversity
30. Plants taking in nitrates from the soil.
Ecosystem
Trophic Level
Assimilation
Brackish Water
31. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Hydrologic Cycle
Precipitation
Alley Cropping
Oligotrophs
32. The process of a gas transforming into a liquid.
Economic Threshold
Interception
Condensation
Organism
33. The UN's first major conference on environmental issues.
Stockholm Conference
Turbidity
Subsistence Farming
Tundra
34. The process of planting different plant species right next to each other to maximize one's yield.
Surface Run-Off
Resource Partitioning
Interplanting
Advection
35. An especially potent greenhouse gas emitted during production and transportation of fossil fuels - decomposition of organic matter - and herds of livestock.
Methane
Alley Cropping
Organism
Assimilation
36. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.
Biosphere
Interception
Stockholm Conference
Montreal Protocol
37. A type of symbiosis where one species will benefit while the other will be neither benefit or be harmed.
Tropical Rain Forest
Deserts
Commensalism
Eukaryotes
38. The process by which pollutants are carried by flowing water - such as a river.
Organism
Advection
Environmental Ethics
Endangered Species Act
39. The rate at which producers create organic material.
Gross Primary Product
Surface Run-Off
Non-government Organizations
Endangered Species Act
40. An international organization designed to promote free trade between countries.
Methane
Producers
Consumers
World Trade Organization
41. A UN conference held in Rio de Janeiro. The conference decided to protect biodiversity - reduce pollution emissions and greenhouse gasses - and promote sustainable development.
Agroforestry
Earth Summit
Ammonification
Interplanting
42. Animals which eat grass and roots.
Grazers
Species
Temperate Rain Forest
Lithosphere
43. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Omnivores
National Environmental Policy Act
Tropopause
Biomes
44. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
Earth Summit
Toxic Substances Control Act
Lithosphere
Browsers
45. 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.
Mesosphere
Denitrification
Interplanting
Intensive Subsistence Farming
46. The middle atmospheric layer. Meteors burn up after entering this layer.
UN Conference on Population and Development
Tropopause
Turbidity
Mesosphere
47. A variety of species living together.
Homo Sapiens
Precipitation
Atmosphere
Community
48. Organisms which produce their own food.
Wilderness Act
Tropopause
Turbidity
Autotrophs
49. Species which react quickly to an environmental change and therefore can be used to diagnose a particular ecosystem.
Indicator Species
Commensalism
Homo Erectus
Interception
50. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Copiotrophs
Cosmetic Spraying
Insurance Spraying
Sublimation