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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 middle atmospheric layer. Meteors burn up after entering this layer.
Toxic Substances Control Act
Aldo Leopold
Biosphere
Mesosphere
2. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Community
Species
Carnivores
Savannah
3. Modern man.
Biodiversity
Brackish Water
Browsers
Homo Sapiens
4. An agency created to establish regulations concerning pollutants to protect humans and the environment.
Environmental Protection Agency
Autotrophs
Trophic Level
Evapotranspiration
5. A community of similar living organisms largely affected by the area's climate.
Biomes
Grasslands
National Environmental Policy Act
Safe Drinking Water Act
6. The loss of water vapor from leaves.
Consumers
Tropical Rain Forest
Total Fertility Rate
Transpiration
7. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.
Ammonification
Stockholm Conference
Thermosphere
Vienna Convention for the Protection of the Ozone Layer
8. Organisms which thrive in low nutrient environments and usually have slow growth rates.
Subsurface flow
Oligotrophs
Tropopause
Resource Partitioning
9. Excess water which cannot be infiltrated into the soil and instead flows along the ground.
Shifting Agriculture
Eukaryotes
Surface Run-Off
Biodiversity
10. An international convention which created the framework for protecting the ozone layer.
Ammonification
Sublimation
Vienna Convention for the Protection of the Ozone Layer
Endangered Species Act
11. Organisms which produce their own food.
Ecotone
Estuary
Autotrophs
Resource Partitioning
12. Organisms which create their own food out of inorganic (abiotic) substances.
Vienna Convention for the Protection of the Ozone Layer
Tropopause
Polyculture
Producers
13. The crust and upper mantle of the earth.
Lithosphere
Ammonification
Savannah
Tundra
14. Average expected birth rate for 1 -000 women.
Total Fertility Rate
Nitrogen Fixation
Ecology
Australopithecus Afarensis
15. The cloudiness of a liquid due to small suspended particles.
Advection
Wildlife Management
Shifting Agriculture
Turbidity
16. A type of symbiosis where one species will benefit while the other will be neither benefit or be harmed.
Advection
Biogeochemical Cycle
Commensalism
Organism
17. All of the water found on earth.
Stockholm Conference
Hydrosphere
Earth Summit
Toxic Substances Control Act
18. An extinct hominid species believed to be the last common ancestor between man and apes.
Ozone
Sahelanthropus Tchadensis
Infiltration
Carbon Dioxide
19. Growing only one crop at a time.
Subsurface flow
Mesosphere
Monoculture
Aldo Leopold
20. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Denitrification
Evaporation
K-Selected Populations
Evapotranspiration
21. The process of planting different plant species right next to each other to maximize one's yield.
Monoculture
Air Pollution
Interplanting
Water Pollution Control Act
22. 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
Coniferous Forest
Eukaryotes
Air Pollution
Mesosphere
23. A greenhouse gas which also plays a key role in regulating ozone levels.
Omnivores
Temperature Inversion
Keystone Species
Nitrous Oxide
24. An act which protects certain lands as national parks.
Social Ecology
Wilderness Act
Tropical Rain Forest
Silent Spring
25. 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.
Wildlife Management
K-Selected Populations
Condensation
Biosphere
26. Organisms with a nucleus.
Eukaryotes
Producers
Assimilation
Cosmetic Spraying
27. The process of a gas transforming into a liquid.
Ecotone
Condensation
Environmental Ethics
Agroforestry
28. 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.
Consumers
Evapotranspiration
Eutrophication
UN Conference on Population and Development
29. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Hydrosphere
Infiltration
Troposphere
Grasslands
30. The uppermost atmospheric layer. Here satellites orbit the earth.
Interception
Hydrosphere
Exosphere
Non-government Organizations
31. The rapid increase of harmful algae in a body of water.
Tropical Rain Forest
Shifting Agriculture
Harmful Algal Bloom
Taiga
32. Animals which eat grass and roots.
Grazers
K-Selected Populations
Non-government Organizations
Eukaryotes
33. 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.
Coniferous Forest
Shifting Agriculture
Sahelanthropus Tchadensis
Hydrologic Cycle
34. Different species living in close contact with each other.
Keystone Species
Sahelanthropus Tchadensis
Estuary
Symbiosis
35. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Polyculture
Estuary
Ozone
Sublimation
36. A variety of species living together.
Community
Vienna Convention for the Protection of the Ozone Layer
Estuary
Non-government Organizations
37. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Subsurface flow
Wildlife Management
Australopithecus Afarensis
Thermosphere
38. Organisms which thrive in high nutrient environments - especially those with plenty of carbon.
Alley Cropping
Copiotrophs
Clean Air Act
Consumers
39. The conversion of nitrates into nitrogen gas.
Snowmelt
Denitrification
Cosmetic Spraying
Troposphere
40. An American environmentalist who is famous for promoting the ideas of environmental ethics and wildlife management.
Aldo Leopold
Evaporation
Commensalism
Homo Sapiens
41. Consumers which eat both plants and animals.
Omnivores
Commensalism
Sahelanthropus Tchadensis
Homo Erectus
42. The rate at which producers create organic material.
Endangered Species Act
Stratosphere
Air Pollution
Gross Primary Product
43. An influential book by Rachel Carson which helped begin the environmental movement.
Silent Spring
Brackish Water
Cosmetic Spraying
Polyculture
44. Biomes far north in North America - Europe - and Asia which - due to very low temperatures - cannot support tree growth.
Kyoto Protocol
Mesosphere
Tundra
Economic Threshold
45. Organisms which eat other organisms.
Consumers
Acid Rain
Intensive Subsistence Farming
Detrivores
46. An international protocol designed to stabilize global warming.
Antarctica
Kyoto Protocol
Evaporation
Ecosystem
47. Plants taking in nitrates from the soil.
Omnivores
Assimilation
Grazers
Lithosphere
48. 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.
Stratosphere
Ecological Niche
Ecology
Homo Erectus
49. 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.
Carbon Dioxide
Australopithecus Afarensis
Sublimation
Silent Spring
50. The position of an organism on the food chain.
Biogeochemical Cycle
Advection
Mesosphere
Trophic Level