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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. An influential book by Rachel Carson which helped begin the environmental movement.
Surface Run-Off
Brackish Water
Vienna Convention for the Protection of the Ozone Layer
Silent Spring
2. Surface run-off caused by melted snow.
Intensive Subsistence Farming
Shifting Agriculture
Symbiosis
Snowmelt
3. The middle atmospheric layer. Meteors burn up after entering this layer.
Sahelanthropus Tchadensis
Cosmetic Spraying
Mesosphere
National Environmental Policy Act
4. The amount of pests needed before spraying pesticides is economical.
Grazers
Ozone
Alley Cropping
Economic Threshold
5. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Polyculture
Ecological Niche
Thermosphere
Detrivores
6. A group of similar organisms capable of interbreeding.
Ozone
Species
Condensation
Antarctica
7. 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
Wilderness Act
R-Selected Populations
Biomes
8. Integrating rows of trees alongside crops to provide mulch and shade - retain water in the soil - and promote sustainable land use.
Wilderness Act
Agroforestry
Shifting Agriculture
Chaparral
9. The loss of water vapor from leaves.
Transpiration
Tropical Rain Forest
Troposphere
Detrivores
10. Species which react quickly to an environmental change and therefore can be used to diagnose a particular ecosystem.
Population
Nitrogen Fixation
Indicator Species
Intensive Subsistence Farming
11. The spraying of pesticides to keep produce from any injuries or damage.
Cosmetic Spraying
Biodiversity
Ozone
Nitrification
12. 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.
Kyoto Protocol
Environmental Ethics
Environmental Protection Agency
Endangered Species Act
13. A type of symbiosis where each species will benefit from interacting with the other.
Biogeochemical Cycle
Shifting Agriculture
Mutualism
Economic Threshold
14. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Troposphere
Kyoto Protocol
Snowmelt
Cosmetic Spraying
15. An extinct hominid species believed to be the last common ancestor between man and apes.
Neanderthals
Eutrophication
Sahelanthropus Tchadensis
Kyoto Protocol
16. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Homo Erectus
Biodiversity
Alley Cropping
Sublimation
17. The spraying of pesticides to prevent a pest problem before it happens.
Evaporation
Competitive Exclusion
Insurance Spraying
Deciduous Forest
18. The position of an organism on the food chain.
Trophic Level
Ecological Niche
Resource Partitioning
K-Selected Populations
19. 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.
Competitive Exclusion
Biomes
Taiga
Omnivores
20. A forest found in temperate regions with warm summers - cool winters - and plenty of rainfall. These kinds of forests are characterized by evergreens and deciduous trees.
Interception
Consumers
Neanderthals
Coniferous Forest
21. The southern-most continent - of which 98% is ice. This continent includes 70% of the world's fresh water - and 90% of the world's ice. Although the average temperature is -49
Condensation
Antarctica
Savannah
Copiotrophs
22. Growing only one crop at a time.
Oligotrophs
Environmental Ethics
Wildlife Management
Monoculture
23. The process of planting trees in between other crops.
Infiltration
Environmental Ethics
Alley Cropping
Silent Spring
24. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Wildlife Management
Symbiosis
Deciduous Forest
Australopithecus Afarensis
25. A greenhouse gas which also plays a key role in regulating ozone levels.
Precipitation
Australopithecus Afarensis
Deciduous Forest
Nitrous Oxide
26. A transitional area between two different ecosystems.
Condensation
Australopithecus Afarensis
Ecotone
Keystone Species
27. An international organization designed to promote free trade between countries.
Sublimation
World Trade Organization
Grazers
Interplanting
28. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
World Trade Organization
Transpiration
Social Ecology
Tropopause
29. Exceptionally acidic (low pH) rain. This phenomenon is caused mainly by emissions of carbon dioxide - sulfur dioxide - and nitrogen oxide which react with water particles in the air.
Acid Rain
Organism
Gross Primary Product
Vienna Convention for the Protection of the Ozone Layer
30. All of the ecosystems on earth.
Thermosphere
Environmental Protection Agency
Interception
Biosphere
31. 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
Mutualism
Stratosphere
Air Pollution
World Trade Organization
32. Different species living in close contact with each other.
Prokaryotes
Total Fertility Rate
Safe Drinking Water Act
Symbiosis
33. 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.
Silent Spring
Organism
Vienna Convention for the Protection of the Ozone Layer
Carbon Dioxide
34. An act which protects certain lands as national parks.
Deciduous Forest
Polyculture
Wilderness Act
Harmful Algal Bloom
35. A forest characterized by clearly differentiated seasons - such as the trees loosing leaves in the fall and heavy snowfall in the winter.
UN Conference on Population and Development
Lithosphere
Interception
Deciduous Forest
36. Populations characterized by large size - long lifespan - and few offspring.
Biodiversity
K-Selected Populations
Taiga
Condensation
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.
Precipitation
Mesosphere
Homo Habilis
Wildlife Management
38. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.
Deciduous Forest
Ammonification
Grasslands
Endangered Species Act
39. Biomes far north in North America - Europe - and Asia which - due to very low temperatures - cannot support tree growth.
Tundra
Biosphere
Coniferous Forest
UN Conference on Population and Development
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.
Deserts
Neanderthals
Mesosphere
Grasslands
41. The second atmospheric layer. The ozone layer is found here - increasing the temperature with altitude.
UN Conference on Population and Development
Stratosphere
Safe Drinking Water Act
Ecological Niche
42. Political organizations not affiliated with the government which try to bring about social change.
Hydrosphere
Non-government Organizations
Autotrophs
Biomes
43. A partially enclosed part of the ocean with rivers or streams flowing into it.
Chaparral
Estuary
Alley Cropping
Lithosphere
44. Modern man.
Estuary
Biodiversity
Homo Sapiens
Coniferous Forest
45. 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.
Aldo Leopold
Monoculture
Stockholm Conference
Homo Erectus
46. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.
Biogeochemical Cycle
Stockholm Conference
Indicator Species
Eutrophication
47. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Alley Cropping
Grasslands
Savannah
Biogeochemical Cycle
48. An act which set standards for the amount of pollution in water.
Oligotrophs
Polyculture
Methane
Water Pollution Control Act
49. 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.
Wilderness Act
Superfund Law
Eutrophication
Coniferous Forest
50. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
Agroforestry
Troposphere
Toxic Substances Control Act
Monoculture