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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. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Sahelanthropus Tchadensis
Nitrification
Taiga
Tropopause
2. A UN conference that addressed the growing population problem.
Assimilation
UN Conference on Population and Development
Interplanting
Taiga
3. The position of an organism on the food chain.
Commensalism
Ecology
Trophic Level
Parasitism
4. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.
Coniferous Forest
Montreal Protocol
Antarctica
Biogeochemical Cycle
5. The process of planting different plant species right next to each other to maximize one's yield.
Indicator Species
Organism
Interplanting
Superfund Law
6. A theory that our current ecological problems are a product of deeper social problems.
Community
Social Ecology
Nitrous Oxide
Turbidity
7. A layer of gasses surrounding the earth.
Brackish Water
Temperate Rain Forest
Atmosphere
Surface Run-Off
8. An act created to protect endangered and threatened species.
Aldo Leopold
Endangered Species Act
Wilderness Act
Copiotrophs
9. 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
Biomes
Air Pollution
Homo Habilis
Endangered Species Act
10. The process of planting trees in between other crops.
Infiltration
Air Pollution
Alley Cropping
Coevolution
11. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Ecology
Thermosphere
Kyoto Protocol
Neanderthals
12. 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.
Symbiosis
Deserts
Methane
Coevolution
13. Animals which eat grass and roots.
Grazers
Agroforestry
Non-government Organizations
Taiga
14. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
Toxic Substances Control Act
Copiotrophs
Montreal Protocol
Hydrosphere
15. Political organizations not affiliated with the government which try to bring about social change.
Biodiversity
Carnivores
Non-government Organizations
Mutualism
16. Different species living in close contact with each other.
Gross Primary Product
Temperature Inversion
Transpiration
Symbiosis
17. The loss of water vapor from leaves.
Turbidity
Transpiration
Resource Partitioning
Tropical Rain Forest
18. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Water Pollution Control Act
Toxic Substances Control Act
Acid Rain
Keystone Species
19. Organisms which create their own food out of inorganic (abiotic) substances.
Producers
Mutualism
Ecology
Harmful Algal Bloom
20. An international organization designed to promote free trade between countries.
Tropical Rain Forest
World Trade Organization
Omnivores
Montreal Protocol
21. 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.
Silent Spring
Chaparral
Clean Air Act
Wilderness Act
22. An influential book by Rachel Carson which helped begin the environmental movement.
Condensation
Silent Spring
Montreal Protocol
Clean Air Act
23. The spraying of pesticides to keep produce from any injuries or damage.
Cosmetic Spraying
Hetrotrophs
Precipitation
Toxic Substances Control Act
24. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Superfund Law
Silent Spring
Toxic Substances Control Act
Evapotranspiration
25. An especially potent greenhouse gas emitted during production and transportation of fossil fuels - decomposition of organic matter - and herds of livestock.
Methane
Subsurface flow
Ozone
Symbiosis
26. An act which established and enforced acceptable levels of air pollution.
Biodiversity
Clean Air Act
Air Pollution
Stratosphere
27. Consumers which eat decomposing organic material.
Kyoto Protocol
Toxic Substances Control Act
Coniferous Forest
Detrivores
28. Growing more than one crop at a time.
Polyculture
Water Pollution Control Act
Montreal Protocol
Silent Spring
29. An act which protects certain lands as national parks.
Wilderness Act
Transpiration
Commensalism
Autotrophs
30. Excess water which cannot be infiltrated into the soil and instead flows along the ground.
Gross Primary Product
Symbiosis
Surface Run-Off
UN Conference on Population and Development
31. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Nitrogen Fixation
Environmental Ethics
Coevolution
Ecological Niche
32. The process of surface water entering the soil. This ensures that plants have adequate access to water.
Environmental Ethics
Infiltration
Competitive Exclusion
Prokaryotes
33. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.
Brackish Water
Thermosphere
Lithosphere
Turbidity
34. Modern man.
Oligotrophs
Condensation
Homo Sapiens
Carnivores
35. The middle atmospheric layer. Meteors burn up after entering this layer.
Mesosphere
R-Selected Populations
Ecotone
Harmful Algal Bloom
36. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Savannah
Eutrophication
Tropopause
Monoculture
37. Surface run-off caused by melted snow.
Snowmelt
World Trade Organization
Sublimation
Chaparral
38. An extinct hominid species believed to be the last common ancestor between man and apes.
Brackish Water
K-Selected Populations
Sahelanthropus Tchadensis
Acid Rain
39. Organisms which produce their own food.
Hetrotrophs
Advection
Population
Autotrophs
40. The amount of pests needed before spraying pesticides is economical.
Economic Threshold
Browsers
Resource Partitioning
Snowmelt
41. An extinct hominid species believed to have long - ape-like arms; have a brain capacity half that of modern men; and use primitive tools.
Homo Habilis
Carnivores
Shifting Agriculture
Endangered Species Act
42. A forest characterized by clearly differentiated seasons - such as the trees loosing leaves in the fall and heavy snowfall in the winter.
Deciduous Forest
K-Selected Populations
Kyoto Protocol
Superfund Law
43. A UN conference held in Rio de Janeiro. The conference decided to protect biodiversity - reduce pollution emissions and greenhouse gasses - and promote sustainable development.
Wildlife Management
Hetrotrophs
Thermosphere
Earth Summit
44. The conversion of nitrates into nitrogen gas.
Species
Denitrification
Tropical Rain Forest
Resource Partitioning
45. Precipitation which does not reach the soil but is instead collected by plants.
Interception
Advection
Tundra
Precipitation
46. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.
Nitrification
Interplanting
Species
Ammonification
47. Organisms which thrive in low nutrient environments and usually have slow growth rates.
Denitrification
Oligotrophs
Tropopause
Ecotone
48. The flow of water in the water table.
Precipitation
Mesosphere
Subsurface flow
Monoculture
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.
Biodiversity
Eutrophication
Taiga
Kyoto Protocol
50. All of the ecosystems on earth.
Biosphere
Stratosphere
Condensation
Insurance Spraying
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