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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.
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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 process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Silent Spring
Producers
Sublimation
Keystone Species
2. 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.
Temperate Rain Forest
Wilderness Act
Biodiversity
Homo Erectus
3. Organisms which consume autotrophs for food.
Gross Primary Product
Community
Hetrotrophs
Superfund Law
4. The position of an organism on the food chain.
Trophic Level
Endangered Species Act
Antarctica
Aldo Leopold
5. An international convention which created the framework for protecting the ozone layer.
Nitrification
National Environmental Policy Act
Transpiration
Vienna Convention for the Protection of the Ozone Layer
6. Consumers which eat only other animals.
Methane
Grasslands
Air Pollution
Carnivores
7. The process by which certain kinds of bacteria convert atmospheric nitrogen gas into ammonia - a form accessible to living creatures.
Nitrogen Fixation
Wilderness Act
Hydrologic Cycle
Stratosphere
8. A community of similar living organisms largely affected by the area's climate.
Deserts
UN Conference on Population and Development
Biomes
Subsistence Farming
9. All of the ecosystems on earth.
Coniferous Forest
Monoculture
Biosphere
Mesosphere
10. 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.
Lithosphere
Acid Rain
Troposphere
Surface Run-Off
11. An especially potent greenhouse gas emitted during production and transportation of fossil fuels - decomposition of organic matter - and herds of livestock.
Monoculture
Wilderness Act
Methane
Social Ecology
12. 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.
Superfund Law
Competitive Exclusion
Montreal Protocol
Economic Threshold
13. The UN's first major conference on environmental issues.
Superfund Law
Community
Stockholm Conference
Ozone
14. An act created to protect endangered and threatened species.
Nitrification
Transpiration
Endangered Species Act
Parasitism
15. Consumers which eat both plants and animals.
Monoculture
Silent Spring
Eutrophication
Omnivores
16. All members of a species which live in the same area.
Coniferous Forest
Species
Competitive Exclusion
Population
17. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
Endangered Species Act
UN Conference on Population and Development
Toxic Substances Control Act
Parasitism
18. Populations characterized by small size - short lifespan - and lots of offspring.
Wilderness Act
UN Conference on Population and Development
Total Fertility Rate
R-Selected Populations
19. The loss of water vapor from leaves.
Lithosphere
Transpiration
Ecotone
Clean Air Act
20. The rate at which producers create organic material.
Homo Habilis
Symbiosis
Gross Primary Product
Grasslands
21. Any living thing on earth.
Assimilation
Temperature Inversion
Organism
Silent Spring
22. The uppermost atmospheric layer. Here satellites orbit the earth.
Environmental Ethics
Exosphere
Tundra
Homo Habilis
23. 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.
Wildlife Management
Interplanting
Non-government Organizations
Biodiversity
24. 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
Lithosphere
Consumers
Hydrologic Cycle
25. Organisms which thrive in high nutrient environments - especially those with plenty of carbon.
Copiotrophs
Neanderthals
Brackish Water
Omnivores
26. 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.
Toxic Substances Control Act
Ozone
Antarctica
Thermosphere
27. 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
Stratosphere
Harmful Algal Bloom
Parasitism
28. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Monoculture
Safe Drinking Water Act
Savannah
R-Selected Populations
29. 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.
Sahelanthropus Tchadensis
Eutrophication
Nitrogen Fixation
Turbidity
30. Organisms which create their own food out of inorganic (abiotic) substances.
Producers
Ecological Niche
Chaparral
Environmental Protection Agency
31. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.
Toxic Substances Control Act
Agroforestry
Superfund Law
Symbiosis
32. The crust and upper mantle of the earth.
Grasslands
Interception
Acid Rain
Lithosphere
33. A type of symbiosis where each species will benefit from interacting with the other.
Exosphere
Polyculture
Mutualism
Non-government Organizations
34. 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.
Hydrosphere
Brackish Water
Carbon Dioxide
Precipitation
35. The spraying of pesticides to prevent a pest problem before it happens.
Detrivores
Infiltration
Prokaryotes
Insurance Spraying
36. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.
Monoculture
Exosphere
Biogeochemical Cycle
Condensation
37. The rapid increase of harmful algae in a body of water.
Vienna Convention for the Protection of the Ozone Layer
National Environmental Policy Act
Harmful Algal Bloom
Oligotrophs
38. Single-celled organisms which lack a nucleus.
Prokaryotes
Thermosphere
Montreal Protocol
Nitrous Oxide
39. The second atmospheric layer. The ozone layer is found here - increasing the temperature with altitude.
Subsurface flow
Stratosphere
Acid Rain
Tropopause
40. Precipitation which does not reach the soil but is instead collected by plants.
Biosphere
Interception
Wildlife Management
Social Ecology
41. A community of species interacting with their nonliving (abiotic) environment.
Ecosystem
Shifting Agriculture
Aldo Leopold
Tropopause
42. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Exosphere
Superfund Law
Australopithecus Afarensis
Air Pollution
43. Animals which eat leaves and shoots.
Superfund Law
Nitrogen Fixation
Eukaryotes
Browsers
44. Plants taking in nitrates from the soil.
Grazers
Assimilation
National Environmental Policy Act
Infiltration
45. The conversion of nitrates into nitrogen gas.
Denitrification
Agroforestry
Organism
Mesosphere
46. A type of symbiosis where one species benefit at the expense of the other.
Resource Partitioning
Environmental Ethics
Carbon Dioxide
Parasitism
47. An act which required the EPA to set standards for drinking water.
Aldo Leopold
Coevolution
Safe Drinking Water Act
Troposphere
48. A variety of species living together.
Nitrogen Fixation
Coevolution
Community
Nitrous Oxide
49. The flow of water in the water table.
Tropical Rain Forest
Carnivores
Subsurface flow
Commensalism
50. A layer of gasses surrounding the earth.
Hetrotrophs
Savannah
Stratosphere
Atmosphere
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