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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. The process of a gas transforming into a liquid.
Polyculture
Biosphere
Condensation
Hetrotrophs
2. 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.
Acid Rain
Shifting Agriculture
Eutrophication
Australopithecus Afarensis
3. An influential book by Rachel Carson which helped begin the environmental movement.
Lithosphere
Silent Spring
Neanderthals
Safe Drinking Water Act
4. Organisms which eat other organisms.
Brackish Water
Nitrification
Savannah
Consumers
5. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.
Brackish Water
Ozone
R-Selected Populations
Clean Air Act
6. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.
Superfund Law
Atmosphere
Wilderness Act
Vienna Convention for the Protection of the Ozone Layer
7. Organisms with a nucleus.
Eukaryotes
Assimilation
Grasslands
Commensalism
8. The position of an organism on the food chain.
Trophic Level
Symbiosis
Monoculture
Coniferous Forest
9. The conversion of nitrates into nitrogen gas.
Denitrification
Deserts
Indicator Species
Prokaryotes
10. An international convention which created the framework for protecting the ozone layer.
Water Pollution Control Act
Vienna Convention for the Protection of the Ozone Layer
Ammonification
Snowmelt
11. The middle atmospheric layer. Meteors burn up after entering this layer.
Tropopause
Acid Rain
Coniferous Forest
Mesosphere
12. Growing only one crop at a time.
Prokaryotes
Monoculture
Ecosystem
Silent Spring
13. A group of similar organisms capable of interbreeding.
Ecological Niche
Denitrification
Kyoto Protocol
Species
14. A UN conference that addressed the growing population problem.
Ecosystem
UN Conference on Population and Development
Sublimation
Temperature Inversion
15. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Tropopause
Deciduous Forest
Temperature Inversion
Organism
16. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Gross Primary Product
Grasslands
Tropical Rain Forest
Kyoto Protocol
17. The coexistence of two species using the same resource where the two will use the resource in different ways.
Resource Partitioning
Ecological Niche
Homo Habilis
Biogeochemical Cycle
18. Species which react quickly to an environmental change and therefore can be used to diagnose a particular ecosystem.
Indicator Species
Grazers
Biogeochemical Cycle
Water Pollution Control Act
19. An agency created to establish regulations concerning pollutants to protect humans and the environment.
Methane
Environmental Protection Agency
Vienna Convention for the Protection of the Ozone Layer
Infiltration
20. Any living thing on earth.
Organism
Neanderthals
Ozone
Eukaryotes
21. Organisms which thrive in low nutrient environments and usually have slow growth rates.
Coevolution
Nitrification
Oligotrophs
Copiotrophs
22. The process by which certain kinds of bacteria convert atmospheric nitrogen gas into ammonia - a form accessible to living creatures.
Atmosphere
Ecological Niche
Competitive Exclusion
Nitrogen Fixation
23. Organisms which thrive in high nutrient environments - especially those with plenty of carbon.
Ammonification
Community
Nitrification
Copiotrophs
24. An international protocol designed to stabilize global warming.
Autotrophs
Infiltration
Competitive Exclusion
Kyoto Protocol
25. A situation where a layer of warmer air traps lower - cooler air - causing pollution to collect near the ground.
Temperature Inversion
Hydrologic Cycle
Thermosphere
Agroforestry
26. 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.
Safe Drinking Water Act
Tropical Rain Forest
Environmental Ethics
K-Selected Populations
27. An act created to protect endangered and threatened species.
Endangered Species Act
Resource Partitioning
Coevolution
Evaporation
28. The rate at which producers create organic material.
Gross Primary Product
Ecology
Organism
Neanderthals
29. The loss of water vapor from leaves.
Lithosphere
Indicator Species
Economic Threshold
Transpiration
30. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Shifting Agriculture
Neanderthals
Ecological Niche
Consumers
31. 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.
Temperate Rain Forest
Carbon Dioxide
Assimilation
Agroforestry
32. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Non-government Organizations
Ecology
Thermosphere
Tundra
33. Precipitation which does not reach the soil but is instead collected by plants.
Interception
National Environmental Policy Act
World Trade Organization
Commensalism
34. A theory that our current ecological problems are a product of deeper social problems.
Social Ecology
Endangered Species Act
Indicator Species
Tropical Rain Forest
35. An act requiring federal agencies to detail the impact of proposed environmental policies.
Stratosphere
Water Pollution Control Act
Precipitation
National Environmental Policy Act
36. The amount of pests needed before spraying pesticides is economical.
Troposphere
Economic Threshold
Silent Spring
Community
37. 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
Neanderthals
Shifting Agriculture
Ecology
Air Pollution
38. 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.
Detrivores
Evaporation
Biodiversity
Infiltration
39. 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.
Social Ecology
Competitive Exclusion
Superfund Law
Temperate Rain Forest
40. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
Population
Agroforestry
Nitrification
Environmental Protection Agency
41. Animals which eat grass and roots.
Tropopause
Organism
Grazers
Environmental Ethics
42. The spraying of pesticides to keep produce from any injuries or damage.
Cosmetic Spraying
Air Pollution
Biodiversity
Taiga
43. A type of symbiosis where one species benefit at the expense of the other.
Parasitism
Carnivores
Transpiration
Deciduous Forest
44. Organisms which create their own food out of inorganic (abiotic) substances.
Non-government Organizations
Producers
Commensalism
Silent Spring
45. Surface run-off caused by melted snow.
Subsistence Farming
Snowmelt
Producers
Water Pollution Control Act
46. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Precipitation
Condensation
Assimilation
Deserts
47. A type of symbiosis where each species will benefit from interacting with the other.
Keystone Species
Homo Habilis
Mutualism
Browsers
48. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
Eukaryotes
Mesosphere
Eutrophication
Toxic Substances Control Act
49. 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.
Prokaryotes
Environmental Ethics
Australopithecus Afarensis
Taiga
50. The process of planting different plant species right next to each other to maximize one's yield.
Eutrophication
Interplanting
Infiltration
Aldo Leopold