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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. 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.
Homo Sapiens
Hydrologic Cycle
Speciation
Grazers
2. Consumers which eat both plants and animals.
Prokaryotes
Agroforestry
Earth Summit
Omnivores
3. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.
Trophic Level
Air Pollution
Deciduous Forest
Brackish Water
4. The process of planting trees in between other crops.
Alley Cropping
Indicator Species
Organism
Copiotrophs
5. Organisms which consume autotrophs for food.
Superfund Law
Troposphere
Hetrotrophs
Intensive Subsistence Farming
6. A type of symbiosis where one species benefit at the expense of the other.
Nitrification
Denitrification
Neanderthals
Parasitism
7. A partially enclosed part of the ocean with rivers or streams flowing into it.
Estuary
Tropical Rain Forest
Copiotrophs
Exosphere
8. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Evapotranspiration
Tropopause
Precipitation
Aldo Leopold
9. Precipitation which does not reach the soil but is instead collected by plants.
Population
Community
Interception
Browsers
10. The amount of pests needed before spraying pesticides is economical.
Deciduous Forest
Economic Threshold
Savannah
Chaparral
11. The loss of water vapor from leaves.
Transpiration
Detrivores
Methane
Non-government Organizations
12. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Indicator Species
Thermosphere
Commensalism
Turbidity
13. A type of farming where the farmer will fell and burn down trees to grow crops. After a few years - he will move on and continue the process.
Producers
Shifting Agriculture
Insurance Spraying
Precipitation
14. 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.
Deserts
Methane
Grasslands
Chaparral
15. Surface run-off caused by melted snow.
Ecological Niche
Hetrotrophs
Snowmelt
Australopithecus Afarensis
16. Consumers which eat only other animals.
Surface Run-Off
Insurance Spraying
Carnivores
Lithosphere
17. The process of surface water entering the soil. This ensures that plants have adequate access to water.
Infiltration
Coniferous Forest
Insurance Spraying
Commensalism
18. The process of a gas transforming into a liquid.
Mesosphere
Condensation
Non-government Organizations
Mutualism
19. Plants taking in nitrates from the soil.
Cosmetic Spraying
Ecosystem
Denitrification
Assimilation
20. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Infiltration
Stockholm Conference
Sublimation
Tundra
21. Organisms with a nucleus.
Vienna Convention for the Protection of the Ozone Layer
Eukaryotes
Ammonification
Subsurface flow
22. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.
Transpiration
Chaparral
Polyculture
Superfund Law
23. Integrating rows of trees alongside crops to provide mulch and shade - retain water in the soil - and promote sustainable land use.
Indicator Species
Montreal Protocol
Cosmetic Spraying
Agroforestry
24. The coexistence of two species using the same resource where the two will use the resource in different ways.
Organism
Lithosphere
Resource Partitioning
Precipitation
25. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
Interception
Toxic Substances Control Act
Polyculture
Insurance Spraying
26. The process by which a new species is created. This process generally requires geographic isolation to prevent interbreeding between the newly emerging species and the parent species.
Antarctica
Superfund Law
Shifting Agriculture
Speciation
27. Populations characterized by small size - short lifespan - and lots of offspring.
Subsurface flow
Evaporation
R-Selected Populations
Detrivores
28. The rate at which producers create organic material.
Stockholm Conference
Nitrification
Gross Primary Product
Species
29. Growing more than one crop at a time.
Keystone Species
Alley Cropping
Polyculture
Deciduous Forest
30. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Troposphere
Condensation
Coniferous Forest
Silent Spring
31. 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.
Oligotrophs
Competitive Exclusion
Cosmetic Spraying
Biodiversity
32. 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.
Insurance Spraying
Carnivores
Intensive Subsistence Farming
Temperature Inversion
33. 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.
Clean Air Act
Turbidity
Environmental Ethics
Neanderthals
34. A layer of gasses surrounding the earth.
Atmosphere
Eukaryotes
Intensive Subsistence Farming
Deserts
35. Different species living in close contact with each other.
Speciation
Parasitism
Symbiosis
Competitive Exclusion
36. An extinct hominid species believed to be the last common ancestor between man and apes.
K-Selected Populations
Deserts
Trophic Level
Sahelanthropus Tchadensis
37. Excess water which cannot be infiltrated into the soil and instead flows along the ground.
Grasslands
Surface Run-Off
Precipitation
Alley Cropping
38. An especially potent greenhouse gas emitted during production and transportation of fossil fuels - decomposition of organic matter - and herds of livestock.
Hydrologic Cycle
Methane
Coniferous Forest
Antarctica
39. An act which established and enforced acceptable levels of air pollution.
Sublimation
Clean Air Act
Stratosphere
Social Ecology
40. The process by which the sun's energy converts liquid water to water vapor in the atmosphere.
Acid Rain
Evaporation
Antarctica
Sahelanthropus Tchadensis
41. Organisms which thrive in low nutrient environments and usually have slow growth rates.
Oligotrophs
Polyculture
Savannah
Non-government Organizations
42. Evolution in one organism due to change in a related organism.
Coevolution
Biogeochemical Cycle
Mutualism
Tropical Rain Forest
43. An international organization designed to promote free trade between countries.
World Trade Organization
Montreal Protocol
Hydrologic Cycle
Neanderthals
44. The second atmospheric layer. The ozone layer is found here - increasing the temperature with altitude.
Advection
Stratosphere
Interception
K-Selected Populations
45. Organisms which thrive in high nutrient environments - especially those with plenty of carbon.
Trophic Level
Economic Threshold
Copiotrophs
Acid Rain
46. Organisms which create their own food out of inorganic (abiotic) substances.
Parasitism
Producers
Chaparral
Sahelanthropus Tchadensis
47. Average expected birth rate for 1 -000 women.
Water Pollution Control Act
Biomes
Total Fertility Rate
Consumers
48. 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.
Browsers
Chaparral
Homo Habilis
Keystone Species
49. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Australopithecus Afarensis
Hydrologic Cycle
Earth Summit
UN Conference on Population and Development
50. The spraying of pesticides to keep produce from any injuries or damage.
Nitrous Oxide
Wildlife Management
Cosmetic Spraying
Homo Sapiens