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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 amount of pests needed before spraying pesticides is economical.
Deserts
Eutrophication
Economic Threshold
Kyoto Protocol
2. Animals which eat grass and roots.
Mutualism
Evaporation
Precipitation
Grazers
3. The coexistence of two species using the same resource where the two will use the resource in different ways.
Detrivores
Resource Partitioning
Tropopause
Shifting Agriculture
4. A forest characterized by clearly differentiated seasons - such as the trees loosing leaves in the fall and heavy snowfall in the winter.
Infiltration
Deciduous Forest
Oligotrophs
Eutrophication
5. 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.
Water Pollution Control Act
Wildlife Management
Assimilation
Ecological Niche
6. An act which protects certain lands as national parks.
Wilderness Act
Chaparral
Species
Grazers
7. Integrating rows of trees alongside crops to provide mulch and shade - retain water in the soil - and promote sustainable land use.
Ecotone
Advection
Agroforestry
Assimilation
8. The spraying of pesticides to keep produce from any injuries or damage.
Cosmetic Spraying
Shifting Agriculture
National Environmental Policy Act
Keystone Species
9. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Kyoto Protocol
Homo Erectus
Troposphere
Browsers
10. Growing only one crop at a time.
Organism
Ecology
Grazers
Monoculture
11. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Tropopause
Grazers
R-Selected Populations
Exosphere
12. The middle atmospheric layer. Meteors burn up after entering this layer.
Interception
Competitive Exclusion
K-Selected Populations
Mesosphere
13. 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.
Ozone
Sublimation
Carbon Dioxide
Indicator Species
14. The process by which the sun's energy converts liquid water to water vapor in the atmosphere.
Tundra
Exosphere
Evaporation
Social Ecology
15. 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.
Harmful Algal Bloom
Grazers
National Environmental Policy Act
Chaparral
16. The flow of water in the water table.
Wildlife Management
Atmosphere
Nitrous Oxide
Subsurface flow
17. An agency created to establish regulations concerning pollutants to protect humans and the environment.
Environmental Protection Agency
Competitive Exclusion
Population
Endangered Species Act
18. An international protocol designed to stabilize global warming.
Methane
Kyoto Protocol
Lithosphere
Eutrophication
19. A greenhouse gas which also plays a key role in regulating ozone levels.
Acid Rain
Species
Savannah
Nitrous Oxide
20. Organisms which thrive in low nutrient environments and usually have slow growth rates.
Taiga
Oligotrophs
Safe Drinking Water Act
Denitrification
21. A type of farming where the farmer will grow just enough crops to satisfy his family's needs for the next year.
Copiotrophs
Trophic Level
Subsistence Farming
Hydrosphere
22. An extinct hominid species believed to be the last common ancestor between man and apes.
Sahelanthropus Tchadensis
Savannah
Ecosystem
UN Conference on Population and Development
23. Surface run-off caused by melted snow.
Snowmelt
Earth Summit
Deserts
Homo Erectus
24. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Tundra
Indicator Species
Thermosphere
Clean Air Act
25. A group of similar organisms capable of interbreeding.
Mutualism
Tropopause
K-Selected Populations
Species
26. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Sublimation
Total Fertility Rate
Carbon Dioxide
Subsurface flow
27. 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.
Infiltration
Hydrologic Cycle
National Environmental Policy Act
Environmental Protection Agency
28. A partially enclosed part of the ocean with rivers or streams flowing into it.
Estuary
Nitrification
Community
Condensation
29. Evolution in one organism due to change in a related organism.
Trophic Level
Gross Primary Product
Atmosphere
Coevolution
30. An American environmentalist who is famous for promoting the ideas of environmental ethics and wildlife management.
Aldo Leopold
K-Selected Populations
Parasitism
Temperature Inversion
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.
Tropopause
Chaparral
Biomes
Speciation
32. Organisms which produce their own food.
World Trade Organization
Ozone
Tropical Rain Forest
Autotrophs
33. All of the ecosystems on earth.
Copiotrophs
Biosphere
Eutrophication
Chaparral
34. A community of species interacting with their nonliving (abiotic) environment.
Atmosphere
Tundra
Ecosystem
K-Selected Populations
35. 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.
Brackish Water
Coniferous Forest
Competitive Exclusion
Hydrosphere
36. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.
Prokaryotes
Montreal Protocol
Organism
Copiotrophs
37. The process of planting different plant species right next to each other to maximize one's yield.
Resource Partitioning
Sahelanthropus Tchadensis
Interplanting
Precipitation
38. 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.
Deciduous Forest
Homo Sapiens
Nitrogen Fixation
Shifting Agriculture
39. An international organization designed to promote free trade between countries.
Eukaryotes
Economic Threshold
Chaparral
World Trade Organization
40. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Exosphere
Thermosphere
Ecological Niche
Agroforestry
41. The position of an organism on the food chain.
Gross Primary Product
Trophic Level
Alley Cropping
Autotrophs
42. 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.
Parasitism
Tropopause
Species
Homo Erectus
43. Organisms which eat other organisms.
Autotrophs
Agroforestry
Clean Air Act
Consumers
44. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.
Biogeochemical Cycle
Interception
Estuary
Lithosphere
45. A situation where a layer of warmer air traps lower - cooler air - causing pollution to collect near the ground.
Exosphere
Infiltration
Temperature Inversion
Silent Spring
46. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Indicator Species
Advection
Precipitation
Harmful Algal Bloom
47. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Brackish Water
Kyoto Protocol
Neanderthals
Atmosphere
48. 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.
Homo Habilis
Hydrologic Cycle
Acid Rain
Coevolution
49. Biomes far north in North America - Europe - and Asia which - due to very low temperatures - cannot support tree growth.
Economic Threshold
Tundra
Antarctica
Biosphere
50. The process of a gas transforming into a liquid.
Social Ecology
Homo Erectus
UN Conference on Population and Development
Condensation