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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. A type of symbiosis where one species benefit at the expense of the other.
Australopithecus Afarensis
Copiotrophs
Parasitism
Sublimation
2. 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.
Antarctica
Brackish Water
Chaparral
Temperature Inversion
3. The process by which pollutants are carried by flowing water - such as a river.
Tropical Rain Forest
Advection
Coniferous Forest
World Trade Organization
4. The position of an organism on the food chain.
Trophic Level
Tropopause
Evaporation
Montreal Protocol
5. The rapid increase of harmful algae in a body of water.
Ecological Niche
Harmful Algal Bloom
Ecosystem
Mesosphere
6. The process of surface water entering the soil. This ensures that plants have adequate access to water.
Advection
Infiltration
National Environmental Policy Act
Ecology
7. A layer of gasses surrounding the earth.
Air Pollution
Atmosphere
Intensive Subsistence Farming
Autotrophs
8. 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.
Economic Threshold
Eutrophication
Speciation
K-Selected Populations
9. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Evapotranspiration
Shifting Agriculture
Indicator Species
Ozone
10. An act requiring federal agencies to detail the impact of proposed environmental policies.
Wildlife Management
Biogeochemical Cycle
Hydrosphere
National Environmental Policy Act
11. A partially enclosed part of the ocean with rivers or streams flowing into it.
Antarctica
Exosphere
Estuary
Mutualism
12. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
Neanderthals
Air Pollution
Nitrification
Agroforestry
13. 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
Aldo Leopold
Eutrophication
Air Pollution
Cosmetic Spraying
14. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Intensive Subsistence Farming
Deciduous Forest
Environmental Ethics
Sublimation
15. Evolution in one organism due to change in a related organism.
Carnivores
Coevolution
Temperature Inversion
Biosphere
16. A type of symbiosis where one species will benefit while the other will be neither benefit or be harmed.
Detrivores
Aldo Leopold
Economic Threshold
Commensalism
17. Political organizations not affiliated with the government which try to bring about social change.
Biogeochemical Cycle
Silent Spring
Non-government Organizations
Population
18. Organisms with a nucleus.
Sublimation
Eukaryotes
Tropical Rain Forest
Evaporation
19. An influential book by Rachel Carson which helped begin the environmental movement.
Exosphere
Silent Spring
Precipitation
R-Selected Populations
20. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Transpiration
Intensive Subsistence Farming
Ecological Niche
Condensation
21. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Tropopause
Montreal Protocol
Insurance Spraying
Competitive Exclusion
22. Plants taking in nitrates from the soil.
Tropopause
Carnivores
Assimilation
Homo Erectus
23. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Non-government Organizations
Ecology
Savannah
Antarctica
24. 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.
Speciation
Insurance Spraying
Commensalism
Tropical Rain Forest
25. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Biogeochemical Cycle
Grasslands
Coevolution
Omnivores
26. Consumers which eat both plants and animals.
Neanderthals
Omnivores
Evapotranspiration
Commensalism
27. Integrating rows of trees alongside crops to provide mulch and shade - retain water in the soil - and promote sustainable land use.
Gross Primary Product
Earth Summit
Wildlife Management
Agroforestry
28. An international protocol designed to stabilize global warming.
Mesosphere
Total Fertility Rate
Kyoto Protocol
Carnivores
29. Single-celled organisms which lack a nucleus.
Biosphere
R-Selected Populations
Turbidity
Prokaryotes
30. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Hetrotrophs
Keystone Species
Acid Rain
Biomes
31. A UN conference held in Rio de Janeiro. The conference decided to protect biodiversity - reduce pollution emissions and greenhouse gasses - and promote sustainable development.
Omnivores
Species
Indicator Species
Earth Summit
32. An international organization designed to promote free trade between countries.
Brackish Water
Acid Rain
World Trade Organization
Superfund Law
33. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.
Superfund Law
Coevolution
Infiltration
Montreal Protocol
34. All members of a species which live in the same area.
Hydrologic Cycle
Earth Summit
Population
Indicator Species
35. 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.
Subsurface flow
Insurance Spraying
Taiga
Consumers
36. An especially potent greenhouse gas emitted during production and transportation of fossil fuels - decomposition of organic matter - and herds of livestock.
Homo Sapiens
Nitrous Oxide
Methane
Insurance Spraying
37. The cloudiness of a liquid due to small suspended particles.
Mutualism
Carnivores
Gross Primary Product
Turbidity
38. 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.
Insurance Spraying
Subsistence Farming
Deserts
Thermosphere
39. An act created to protect endangered and threatened species.
Atmosphere
Coniferous Forest
Endangered Species Act
Speciation
40. An extinct hominid species believed to be the last common ancestor between man and apes.
Sahelanthropus Tchadensis
Ecology
Toxic Substances Control Act
Eutrophication
41. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.
Gross Primary Product
Shifting Agriculture
Biogeochemical Cycle
Consumers
42. Organisms which produce their own food.
Species
Homo Habilis
Autotrophs
Snowmelt
43. Growing more than one crop at a time.
Community
Polyculture
Hydrosphere
Gross Primary Product
44. 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.
Species
Wilderness Act
Hydrologic Cycle
Evapotranspiration
45. Growing only one crop at a time.
Exosphere
Monoculture
UN Conference on Population and Development
Methane
46. Biomes far north in North America - Europe - and Asia which - due to very low temperatures - cannot support tree growth.
Insurance Spraying
Tundra
Producers
Biomes
47. An agency created to establish regulations concerning pollutants to protect humans and the environment.
Alley Cropping
Environmental Protection Agency
Species
Aldo Leopold
48. Populations characterized by small size - short lifespan - and lots of offspring.
R-Selected Populations
Nitrous Oxide
Grasslands
Stockholm Conference
49. Organisms which thrive in high nutrient environments - especially those with plenty of carbon.
Mesosphere
UN Conference on Population and Development
Copiotrophs
Troposphere
50. Organisms which create their own food out of inorganic (abiotic) substances.
Savannah
Producers
Vienna Convention for the Protection of the Ozone Layer
Prokaryotes