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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 act requiring federal agencies to detail the impact of proposed environmental policies.
National Environmental Policy Act
Ozone
Nitrogen Fixation
Sahelanthropus Tchadensis
2. An influential book by Rachel Carson which helped begin the environmental movement.
K-Selected Populations
Eutrophication
Silent Spring
Estuary
3. Growing more than one crop at a time.
Snowmelt
Polyculture
Mesosphere
Sublimation
4. The conversion of nitrates into nitrogen gas.
Denitrification
Brackish Water
Consumers
Mesosphere
5. The process by which certain kinds of bacteria convert atmospheric nitrogen gas into ammonia - a form accessible to living creatures.
Mutualism
Nitrogen Fixation
Hetrotrophs
Trophic Level
6. A greenhouse gas which also plays a key role in regulating ozone levels.
Coniferous Forest
Ammonification
Consumers
Nitrous Oxide
7. The coexistence of two species using the same resource where the two will use the resource in different ways.
Resource Partitioning
Hydrologic Cycle
Parasitism
Biogeochemical Cycle
8. Organisms which produce their own food.
Autotrophs
Precipitation
Endangered Species Act
Interception
9. An act which protects certain lands as national parks.
Toxic Substances Control Act
Eukaryotes
Coniferous Forest
Wilderness Act
10. The crust and upper mantle of the earth.
Savannah
Interplanting
Environmental Protection Agency
Lithosphere
11. Average expected birth rate for 1 -000 women.
Hetrotrophs
Speciation
Tropical Rain Forest
Total Fertility Rate
12. Animals which eat leaves and shoots.
Biomes
Browsers
Hydrosphere
Aldo Leopold
13. 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.
Thermosphere
Stockholm Conference
Biodiversity
Biogeochemical Cycle
14. An American environmentalist who is famous for promoting the ideas of environmental ethics and wildlife management.
Agroforestry
Detrivores
Troposphere
Aldo Leopold
15. Modern man.
UN Conference on Population and Development
Acid Rain
Homo Sapiens
Clean Air Act
16. An act created to protect endangered and threatened species.
Interception
UN Conference on Population and Development
Insurance Spraying
Endangered Species Act
17. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Total Fertility Rate
Deserts
Assimilation
Tropopause
18. Biomes far north in North America - Europe - and Asia which - due to very low temperatures - cannot support tree growth.
Tundra
Subsistence Farming
Brackish Water
Social Ecology
19. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Silent Spring
Grasslands
Clean Air Act
Thermosphere
20. A type of symbiosis where one species will benefit while the other will be neither benefit or be harmed.
Biosphere
Temperate Rain Forest
Commensalism
UN Conference on Population and Development
21. 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.
Insurance Spraying
Homo Erectus
Hydrologic Cycle
Interception
22. A type of farming where the farmer will grow crops both to fulfill his family's needs for the next year and to sell on the market.
Species
Evapotranspiration
Total Fertility Rate
Intensive Subsistence Farming
23. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
Nitrogen Fixation
Toxic Substances Control Act
Eukaryotes
Intensive Subsistence Farming
24. 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.
Tundra
Eutrophication
Total Fertility Rate
Stockholm Conference
25. Populations characterized by small size - short lifespan - and lots of offspring.
R-Selected Populations
K-Selected Populations
Biogeochemical Cycle
Transpiration
26. Growing only one crop at a time.
Turbidity
Monoculture
Mesosphere
Temperature Inversion
27. A community of species interacting with their nonliving (abiotic) environment.
Earth Summit
Ecosystem
Eukaryotes
Consumers
28. Consumers which eat only other animals.
World Trade Organization
Neanderthals
Carnivores
Stratosphere
29. The rate at which producers create organic material.
Ecosystem
Gross Primary Product
Prokaryotes
National Environmental Policy Act
30. All members of a species which live in the same area.
Sublimation
Economic Threshold
Sahelanthropus Tchadensis
Population
31. A layer of gasses surrounding the earth.
Earth Summit
Eutrophication
Homo Sapiens
Atmosphere
32. A transitional area between two different ecosystems.
Tropical Rain Forest
Insurance Spraying
Safe Drinking Water Act
Ecotone
33. A situation where a layer of warmer air traps lower - cooler air - causing pollution to collect near the ground.
Shifting Agriculture
Autotrophs
Homo Sapiens
Temperature Inversion
34. The spraying of pesticides to prevent a pest problem before it happens.
Eutrophication
Monoculture
Population
Insurance Spraying
35. Different species living in close contact with each other.
Intensive Subsistence Farming
Savannah
Symbiosis
Vienna Convention for the Protection of the Ozone Layer
36. The loss of water vapor from leaves.
Transpiration
R-Selected Populations
Ecotone
Omnivores
37. A type of farming where the farmer will fell and burn down trees to grow crops. After a few years - he will move on and continue the process.
Intensive Subsistence Farming
Neanderthals
Shifting Agriculture
Nitrous Oxide
38. The second atmospheric layer. The ozone layer is found here - increasing the temperature with altitude.
Nitrous Oxide
Stratosphere
Insurance Spraying
World Trade Organization
39. The UN's first major conference on environmental issues.
Polyculture
Stockholm Conference
Toxic Substances Control Act
Montreal Protocol
40. Organisms with a nucleus.
Acid Rain
Eukaryotes
Toxic Substances Control Act
Ecology
41. Precipitation which does not reach the soil but is instead collected by plants.
Clean Air Act
Interception
Homo Sapiens
Deciduous Forest
42. 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
Carbon Dioxide
Antarctica
Consumers
Stratosphere
43. The process by which the sun's energy converts liquid water to water vapor in the atmosphere.
Evaporation
Hydrologic Cycle
Ecosystem
Coniferous Forest
44. Plants taking in nitrates from the soil.
Ozone
Tropopause
Population
Assimilation
45. The process of planting trees in between other crops.
Atmosphere
Ozone
Alley Cropping
Taiga
46. The rapid increase of harmful algae in a body of water.
Deciduous Forest
Agroforestry
Harmful Algal Bloom
Homo Habilis
47. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Neanderthals
Ecological Niche
Denitrification
Savannah
48. Organisms which eat other organisms.
Superfund Law
Sublimation
Consumers
Water Pollution Control Act
49. Single-celled organisms which lack a nucleus.
Savannah
Eukaryotes
Ecotone
Prokaryotes
50. A partially enclosed part of the ocean with rivers or streams flowing into it.
Tropopause
National Environmental Policy Act
Deserts
Estuary