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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. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Savannah
Monoculture
Grasslands
Surface Run-Off
2. The uppermost atmospheric layer. Here satellites orbit the earth.
Estuary
Surface Run-Off
Producers
Exosphere
3. A community of similar living organisms largely affected by the area's climate.
Acid Rain
Denitrification
Biomes
Biogeochemical Cycle
4. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Evapotranspiration
Alley Cropping
Cosmetic Spraying
Homo Habilis
5. The coexistence of two species using the same resource where the two will use the resource in different ways.
Resource Partitioning
Nitrogen Fixation
Homo Sapiens
Eukaryotes
6. A group of similar organisms capable of interbreeding.
Denitrification
Ecosystem
Species
Aldo Leopold
7. Organisms which produce their own food.
Autotrophs
Copiotrophs
Coevolution
Trophic Level
8. A layer of gasses surrounding the earth.
Snowmelt
Atmosphere
Brackish Water
Consumers
9. An act which established and enforced acceptable levels of air pollution.
Omnivores
Clean Air Act
Speciation
Evapotranspiration
10. 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.
Resource Partitioning
Atmosphere
Polyculture
Deserts
11. The loss of water vapor from leaves.
Intensive Subsistence Farming
Deciduous Forest
Commensalism
Transpiration
12. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.
Estuary
Stockholm Conference
Ammonification
Prokaryotes
13. Single-celled organisms which lack a nucleus.
Homo Erectus
Shifting Agriculture
Interplanting
Prokaryotes
14. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Carnivores
Sublimation
Detrivores
Transpiration
15. The position of an organism on the food chain.
Trophic Level
Homo Habilis
UN Conference on Population and Development
Hetrotrophs
16. Surface run-off caused by melted snow.
Eukaryotes
Snowmelt
Copiotrophs
Stratosphere
17. The process of planting trees in between other crops.
Antarctica
Alley Cropping
Exosphere
Nitrous Oxide
18. A rainforest in the temperate zone which receives heavy rainfall.
Carnivores
Kyoto Protocol
Omnivores
Temperate Rain Forest
19. Species which react quickly to an environmental change and therefore can be used to diagnose a particular ecosystem.
Sahelanthropus Tchadensis
Environmental Protection Agency
Indicator Species
Gross Primary Product
20. 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
Savannah
Lithosphere
Environmental Ethics
Antarctica
21. An international convention which created the framework for protecting the ozone layer.
Hydrologic Cycle
World Trade Organization
Hydrosphere
Vienna Convention for the Protection of the Ozone Layer
22. Different species living in close contact with each other.
Symbiosis
Troposphere
Carbon Dioxide
Monoculture
23. Organisms which thrive in high nutrient environments - especially those with plenty of carbon.
Acid Rain
Competitive Exclusion
Brackish Water
Copiotrophs
24. Organisms which thrive in low nutrient environments and usually have slow growth rates.
Indicator Species
Oligotrophs
Environmental Protection Agency
Aldo Leopold
25. The process by which pollutants are carried by flowing water - such as a river.
Estuary
Prokaryotes
Advection
Acid Rain
26. An act created to protect endangered and threatened species.
Kyoto Protocol
Endangered Species Act
Tropopause
Vienna Convention for the Protection of the Ozone Layer
27. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Ecological Niche
Silent Spring
Biodiversity
Nitrous Oxide
28. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.
Grazers
Thermosphere
Consumers
Biogeochemical Cycle
29. An act which set standards for the amount of pollution in water.
Subsurface flow
Competitive Exclusion
Water Pollution Control Act
Deciduous Forest
30. 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.
Producers
Total Fertility Rate
Hetrotrophs
Speciation
31. An especially potent greenhouse gas emitted during production and transportation of fossil fuels - decomposition of organic matter - and herds of livestock.
Deserts
Methane
Turbidity
Copiotrophs
32. An international organization designed to promote free trade between countries.
Homo Habilis
Water Pollution Control Act
World Trade Organization
Environmental Ethics
33. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
Thermosphere
Nitrification
Biogeochemical Cycle
Total Fertility Rate
34. An act requiring federal agencies to detail the impact of proposed environmental policies.
National Environmental Policy Act
Prokaryotes
Neanderthals
Surface Run-Off
35. The UN's first major conference on environmental issues.
Stockholm Conference
Consumers
Wilderness Act
Interception
36. Consumers which eat decomposing organic material.
Ammonification
Resource Partitioning
Homo Erectus
Detrivores
37. Populations characterized by small size - short lifespan - and lots of offspring.
Biosphere
Competitive Exclusion
R-Selected Populations
Turbidity
38. The second atmospheric layer. The ozone layer is found here - increasing the temperature with altitude.
Competitive Exclusion
Stratosphere
Agroforestry
Biosphere
39. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Troposphere
Carbon Dioxide
Denitrification
Tropopause
40. The process of surface water entering the soil. This ensures that plants have adequate access to water.
Infiltration
Organism
Savannah
Total Fertility Rate
41. A UN conference that addressed the growing population problem.
UN Conference on Population and Development
Carbon Dioxide
Alley Cropping
Coniferous Forest
42. All of the water found on earth.
Neanderthals
Commensalism
Taiga
Hydrosphere
43. 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.
Oligotrophs
Clean Air Act
Taiga
Transpiration
44. Consumers which eat both plants and animals.
Surface Run-Off
Omnivores
Transpiration
Nitrification
45. Animals which eat leaves and shoots.
Transpiration
Browsers
Omnivores
Deserts
46. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.
Superfund Law
Indicator Species
Savannah
Ecosystem
47. 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
Air Pollution
Ecological Niche
Mutualism
Superfund Law
48. The crust and upper mantle of the earth.
Nitrification
Total Fertility Rate
Lithosphere
Precipitation
49. Modern man.
Infiltration
Homo Sapiens
Ozone
Superfund Law
50. The cloudiness of a liquid due to small suspended particles.
Ecology
Coevolution
Turbidity
Infiltration