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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. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Biogeochemical Cycle
Agroforestry
Tropopause
Savannah
2. Species which react quickly to an environmental change and therefore can be used to diagnose a particular ecosystem.
Temperature Inversion
Superfund Law
Taiga
Indicator Species
3. Political organizations not affiliated with the government which try to bring about social change.
Montreal Protocol
Parasitism
Non-government Organizations
Condensation
4. Any living thing on earth.
Organism
Environmental Protection Agency
Australopithecus Afarensis
Ecology
5. Organisms which consume autotrophs for food.
Kyoto Protocol
Eukaryotes
Hetrotrophs
Speciation
6. Modern man.
Homo Sapiens
Troposphere
Estuary
K-Selected Populations
7. The process of a gas transforming into a liquid.
Vienna Convention for the Protection of the Ozone Layer
Tropopause
Organism
Condensation
8. All of the water found on earth.
Omnivores
Neanderthals
Non-government Organizations
Hydrosphere
9. An American environmentalist who is famous for promoting the ideas of environmental ethics and wildlife management.
Wilderness Act
Ecology
Aldo Leopold
Interception
10. The cloudiness of a liquid due to small suspended particles.
Subsistence Farming
Temperate Rain Forest
Ozone
Turbidity
11. A variety of species living together.
Taiga
Ecosystem
Community
Denitrification
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.
Competitive Exclusion
Sahelanthropus Tchadensis
Ecological Niche
World Trade Organization
13. The second atmospheric layer. The ozone layer is found here - increasing the temperature with altitude.
Transpiration
Stratosphere
World Trade Organization
Neanderthals
14. The rate at which producers create organic material.
Homo Erectus
Gross Primary Product
Nitrification
Precipitation
15. 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.
National Environmental Policy Act
Temperate Rain Forest
Grasslands
Eutrophication
16. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Neanderthals
Social Ecology
Tropical Rain Forest
Temperature Inversion
17. The coexistence of two species using the same resource where the two will use the resource in different ways.
Ecosystem
Snowmelt
Eukaryotes
Resource Partitioning
18. The conversion of nitrates into nitrogen gas.
Symbiosis
Hydrosphere
Denitrification
Biodiversity
19. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Eukaryotes
Gross Primary Product
Precipitation
Deserts
20. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Wilderness Act
Hydrologic Cycle
Tropopause
World Trade Organization
21. Precipitation which does not reach the soil but is instead collected by plants.
Transpiration
Interception
Atmosphere
Prokaryotes
22. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Sahelanthropus Tchadensis
Toxic Substances Control Act
Grasslands
Evapotranspiration
23. A community of similar living organisms largely affected by the area's climate.
Biomes
Ecotone
Coevolution
Earth Summit
24. Animals which eat grass and roots.
Tropical Rain Forest
Ecotone
Coniferous Forest
Grazers
25. Excess water which cannot be infiltrated into the soil and instead flows along the ground.
Symbiosis
Surface Run-Off
Carbon Dioxide
Biodiversity
26. Populations characterized by large size - long lifespan - and few offspring.
Intensive Subsistence Farming
Ecotone
K-Selected Populations
Polyculture
27. A type of symbiosis where one species will benefit while the other will be neither benefit or be harmed.
Subsistence Farming
Deserts
Infiltration
Commensalism
28. Organisms which eat other organisms.
Keystone Species
Consumers
Coniferous Forest
Cosmetic Spraying
29. A theory that our current ecological problems are a product of deeper social problems.
National Environmental Policy Act
Social Ecology
Parasitism
Snowmelt
30. A group of similar organisms capable of interbreeding.
Eukaryotes
Species
Harmful Algal Bloom
Coniferous Forest
31. 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.
K-Selected Populations
Speciation
Coniferous Forest
Alley Cropping
32. Single-celled organisms which lack a nucleus.
Prokaryotes
Environmental Protection Agency
Snowmelt
Detrivores
33. A type of symbiosis where each species will benefit from interacting with the other.
World Trade Organization
Mutualism
Ecology
Consumers
34. A greenhouse gas which also plays a key role in regulating ozone levels.
Nitrous Oxide
Carbon Dioxide
Deciduous Forest
Economic Threshold
35. The crust and upper mantle of the earth.
Ecotone
Biodiversity
Lithosphere
Surface Run-Off
36. 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.
Chaparral
Harmful Algal Bloom
Ecosystem
Evaporation
37. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
Tropopause
Insurance Spraying
Precipitation
Nitrification
38. Integrating rows of trees alongside crops to provide mulch and shade - retain water in the soil - and promote sustainable land use.
Air Pollution
Advection
Agroforestry
Non-government Organizations
39. Organisms which produce their own food.
Autotrophs
Social Ecology
Air Pollution
Biogeochemical Cycle
40. An especially potent greenhouse gas emitted during production and transportation of fossil fuels - decomposition of organic matter - and herds of livestock.
Methane
Resource Partitioning
Thermosphere
Tropical Rain Forest
41. A type of symbiosis where one species benefit at the expense of the other.
Parasitism
Cosmetic Spraying
Biosphere
Resource Partitioning
42. A UN conference held in Rio de Janeiro. The conference decided to protect biodiversity - reduce pollution emissions and greenhouse gasses - and promote sustainable development.
Ecology
Mesosphere
Superfund Law
Earth Summit
43. The flow of water in the water table.
Keystone Species
Eukaryotes
Subsurface flow
Ammonification
44. An influential book by Rachel Carson which helped begin the environmental movement.
Silent Spring
Homo Habilis
Producers
Nitrification
45. Different species living in close contact with each other.
Hydrosphere
Deserts
Symbiosis
Nitrogen Fixation
46. The amount of pests needed before spraying pesticides is economical.
Eutrophication
Keystone Species
Economic Threshold
Total Fertility Rate
47. An act which set standards for the amount of pollution in water.
Subsistence Farming
Thermosphere
Water Pollution Control Act
Biosphere
48. Surface run-off caused by melted snow.
Snowmelt
Montreal Protocol
Symbiosis
Acid Rain
49. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Thermosphere
Nitrogen Fixation
Cosmetic Spraying
Acid Rain
50. Plants taking in nitrates from the soil.
Homo Habilis
Precipitation
UN Conference on Population and Development
Assimilation