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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 forest found in temperate regions with warm summers - cool winters - and plenty of rainfall. These kinds of forests are characterized by evergreens and deciduous trees.
World Trade Organization
Coniferous Forest
K-Selected Populations
Evaporation
2. 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 Sapiens
Producers
Acid Rain
Atmosphere
3. The rate at which producers create organic material.
Stockholm Conference
Gross Primary Product
Exosphere
Turbidity
4. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.
Indicator Species
Hydrosphere
Biogeochemical Cycle
Wildlife Management
5. Organisms which produce their own food.
Autotrophs
Ecology
Nitrous Oxide
Thermosphere
6. Surface run-off caused by melted snow.
Cosmetic Spraying
Snowmelt
Exosphere
Ecosystem
7. The second atmospheric layer. The ozone layer is found here - increasing the temperature with altitude.
Advection
Vienna Convention for the Protection of the Ozone Layer
Stratosphere
Deciduous Forest
8. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Safe Drinking Water Act
Gross Primary Product
Troposphere
Population
9. Organisms which thrive in low nutrient environments and usually have slow growth rates.
Lithosphere
Coevolution
Homo Habilis
Oligotrophs
10. Organisms which consume autotrophs for food.
Harmful Algal Bloom
Subsurface flow
Trophic Level
Hetrotrophs
11. 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
Taiga
Monoculture
World Trade Organization
12. An extinct hominid species believed to have long - ape-like arms; have a brain capacity half that of modern men; and use primitive tools.
Hetrotrophs
Organism
Homo Habilis
Evaporation
13. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Neanderthals
Nitrification
Coniferous Forest
Eutrophication
14. A layer of gasses surrounding the earth.
Atmosphere
Neanderthals
Nitrification
Alley Cropping
15. A rainforest in the temperate zone which receives heavy rainfall.
Monoculture
Species
Nitrification
Temperate Rain Forest
16. Consumers which eat only other animals.
Antarctica
Carnivores
Savannah
Browsers
17. An international protocol designed to stabilize global warming.
Kyoto Protocol
Sahelanthropus Tchadensis
Nitrogen Fixation
Deciduous Forest
18. Plants taking in nitrates from the soil.
Aldo Leopold
Assimilation
Detrivores
Ecological Niche
19. Consumers which eat both plants and animals.
Nitrogen Fixation
Water Pollution Control Act
Ozone
Omnivores
20. Precipitation which does not reach the soil but is instead collected by plants.
Biodiversity
Interception
Surface Run-Off
Homo Sapiens
21. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Tropopause
Deciduous Forest
R-Selected Populations
Ecology
22. 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
Symbiosis
Silent Spring
Coniferous Forest
23. The amount of pests needed before spraying pesticides is economical.
Economic Threshold
Symbiosis
Environmental Ethics
Infiltration
24. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
Toxic Substances Control Act
Mesosphere
Interplanting
Nitrification
25. All members of a species which live in the same area.
Population
Environmental Ethics
Wildlife Management
Gross Primary Product
26. Consumers which eat decomposing organic material.
Ecosystem
Economic Threshold
Endangered Species Act
Detrivores
27. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Thermosphere
Homo Erectus
Australopithecus Afarensis
Alley Cropping
28. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Precipitation
Interception
Subsurface flow
Mutualism
29. A type of farming where the farmer will grow just enough crops to satisfy his family's needs for the next year.
Subsistence Farming
Environmental Protection Agency
Exosphere
Keystone Species
30. An unstable form of oxygen which protects the earth from UV radiation. Although naturally occurring in the stratosphere (upper atmosphere) - in the lower atmosphere this gas acts as a pollutant.
Ozone
Superfund Law
Neanderthals
Species
31. 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.
Shifting Agriculture
Wildlife Management
Coevolution
Grasslands
32. A variety of species living together.
Community
UN Conference on Population and Development
Eukaryotes
Non-government Organizations
33. An act which protects certain lands as national parks.
Air Pollution
Safe Drinking Water Act
Indicator Species
Wilderness Act
34. 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.
Hetrotrophs
Population
Competitive Exclusion
Prokaryotes
35. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Superfund Law
Transpiration
Ecological Niche
Shifting Agriculture
36. 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.
Safe Drinking Water Act
Air Pollution
Biodiversity
Hydrosphere
37. The spraying of pesticides to keep produce from any injuries or damage.
Cosmetic Spraying
Grasslands
Nitrogen Fixation
Estuary
38. 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
Tropopause
Thermosphere
Taiga
39. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Keystone Species
Lithosphere
Ecosystem
Turbidity
40. The process of a gas transforming into a liquid.
Ecotone
Condensation
Population
Biodiversity
41. A community of similar living organisms largely affected by the area's climate.
Speciation
Interplanting
Biomes
Tropical Rain Forest
42. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.
Antarctica
Prokaryotes
World Trade Organization
Brackish Water
43. The process of planting trees in between other crops.
Evapotranspiration
Alley Cropping
Keystone Species
Lithosphere
44. An extinct hominid species believed to be the last common ancestor between man and apes.
Sahelanthropus Tchadensis
K-Selected Populations
Vienna Convention for the Protection of the Ozone Layer
Temperature Inversion
45. Populations characterized by large size - long lifespan - and few offspring.
K-Selected Populations
Browsers
Monoculture
Kyoto Protocol
46. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Kyoto Protocol
Exosphere
Competitive Exclusion
Grasslands
47. The coexistence of two species using the same resource where the two will use the resource in different ways.
Air Pollution
Resource Partitioning
Estuary
Turbidity
48. The uppermost atmospheric layer. Here satellites orbit the earth.
Consumers
Eutrophication
Exosphere
Water Pollution Control Act
49. A greenhouse gas which also plays a key role in regulating ozone levels.
Nitrous Oxide
Air Pollution
Clean Air Act
Neanderthals
50. The spraying of pesticides to prevent a pest problem before it happens.
Temperate Rain Forest
Ecological Niche
Parasitism
Insurance Spraying