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Test your basic knowledge |
DSST Environment And Humanity
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Subjects
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dsst
,
science
Instructions:
Answer 50 questions in 15 minutes.
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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 community of similar living organisms largely affected by the area's climate.
Sublimation
Omnivores
Biomes
Nitrous Oxide
2. Organisms which thrive in high nutrient environments - especially those with plenty of carbon.
Denitrification
Copiotrophs
Homo Habilis
UN Conference on Population and Development
3. Organisms which create their own food out of inorganic (abiotic) substances.
Australopithecus Afarensis
Population
Surface Run-Off
Producers
4. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.
Social Ecology
Brackish Water
Methane
Hydrosphere
5. An influential book by Rachel Carson which helped begin the environmental movement.
Silent Spring
Speciation
Eutrophication
Evaporation
6. A type of symbiosis where one species benefit at the expense of the other.
Precipitation
Wildlife Management
Atmosphere
Parasitism
7. Animals which eat leaves and shoots.
Agroforestry
Browsers
Detrivores
Grazers
8. An international organization designed to promote free trade between countries.
World Trade Organization
Transpiration
Ecology
Ecotone
9. Organisms which produce their own food.
World Trade Organization
Autotrophs
Australopithecus Afarensis
Sahelanthropus Tchadensis
10. All members of a species which live in the same area.
Estuary
Deciduous Forest
Sahelanthropus Tchadensis
Population
11. Integrating rows of trees alongside crops to provide mulch and shade - retain water in the soil - and promote sustainable land use.
Methane
Agroforestry
Hydrologic Cycle
Australopithecus Afarensis
12. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Total Fertility Rate
UN Conference on Population and Development
Sublimation
Wildlife Management
13. The process by which pollutants are carried by flowing water - such as a river.
Nitrogen Fixation
Methane
Assimilation
Advection
14. A type of symbiosis where one species will benefit while the other will be neither benefit or be harmed.
Commensalism
Harmful Algal Bloom
Nitrification
Hetrotrophs
15. The amount of pests needed before spraying pesticides is economical.
Economic Threshold
Brackish Water
Deserts
Biogeochemical Cycle
16. The process of planting different plant species right next to each other to maximize one's yield.
Interplanting
Sahelanthropus Tchadensis
Coevolution
Lithosphere
17. All of the ecosystems on earth.
Environmental Protection Agency
Economic Threshold
Deciduous Forest
Biosphere
18. An act which protects certain lands as national parks.
UN Conference on Population and Development
Wilderness Act
World Trade Organization
Carbon Dioxide
19. Animals which eat grass and roots.
Transpiration
Grazers
Interplanting
Autotrophs
20. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Acid Rain
Surface Run-Off
Competitive Exclusion
Australopithecus Afarensis
21. A type of symbiosis where each species will benefit from interacting with the other.
Sahelanthropus Tchadensis
Mutualism
Denitrification
Hydrosphere
22. A layer of gasses surrounding the earth.
Interception
Ammonification
Atmosphere
Hydrosphere
23. A philosophy that extends ethics to non-humans. Under this system - animals - plants - and other aspects of the environment are seen as being deserving of justice and consideration.
Shifting Agriculture
Non-government Organizations
Wildlife Management
Environmental Ethics
24. 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.
Indicator Species
K-Selected Populations
Lithosphere
Deserts
25. The process of a gas transforming into a liquid.
Keystone Species
Autotrophs
Consumers
Condensation
26. An act which set standards for the amount of pollution in water.
Cosmetic Spraying
Thermosphere
Water Pollution Control Act
Methane
27. Organisms which eat other organisms.
Endangered Species Act
Water Pollution Control Act
Consumers
Intensive Subsistence Farming
28. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Ecological Niche
Parasitism
Savannah
Alley Cropping
29. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
Toxic Substances Control Act
Biogeochemical Cycle
Economic Threshold
Nitrogen Fixation
30. Average expected birth rate for 1 -000 women.
Symbiosis
Stratosphere
Homo Erectus
Total Fertility Rate
31. An act which established and enforced acceptable levels of air pollution.
Population
Silent Spring
Kyoto Protocol
Clean Air Act
32. The position of an organism on the food chain.
Autotrophs
Trophic Level
Agroforestry
Competitive Exclusion
33. 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.
Ecological Niche
Temperate Rain Forest
Acid Rain
Interplanting
34. An act which required the EPA to set standards for drinking water.
Coniferous Forest
Safe Drinking Water Act
Homo Habilis
World Trade Organization
35. 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.
National Environmental Policy Act
Intensive Subsistence Farming
Copiotrophs
K-Selected Populations
36. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
Nitrification
Browsers
Commensalism
Eukaryotes
37. 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.
Competitive Exclusion
Population
Biomes
Neanderthals
38. 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.
Speciation
Taiga
Transpiration
Ecotone
39. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Neanderthals
World Trade Organization
Homo Habilis
Antarctica
40. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Eukaryotes
Precipitation
Hetrotrophs
Coniferous Forest
41. The uppermost atmospheric layer. Here satellites orbit the earth.
UN Conference on Population and Development
Subsistence Farming
Exosphere
Parasitism
42. A theory that our current ecological problems are a product of deeper social problems.
Clean Air Act
Social Ecology
Detrivores
Polyculture
43. Evolution in one organism due to change in a related organism.
Detrivores
Eukaryotes
K-Selected Populations
Coevolution
44. Consumers which eat decomposing organic material.
Detrivores
Community
Shifting Agriculture
Nitrogen Fixation
45. 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.
R-Selected Populations
Coniferous Forest
Species
Trophic Level
46. 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
Gross Primary Product
Superfund Law
Earth Summit
47. Excess water which cannot be infiltrated into the soil and instead flows along the ground.
Surface Run-Off
Gross Primary Product
Autotrophs
Savannah
48. Populations characterized by large size - long lifespan - and few offspring.
Ozone
Safe Drinking Water Act
Aldo Leopold
K-Selected Populations
49. Plants taking in nitrates from the soil.
Assimilation
Economic Threshold
Water Pollution Control Act
Non-government Organizations
50. 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.
Thermosphere
Ecology
Eutrophication
Non-government Organizations
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