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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 near the equator with heavy rainfall and a great diversity of plant and animal life. Although a mere 2% of the earth is covered with these forests - they contain 50-80% of earth's land species.
Turbidity
Gross Primary Product
Air Pollution
Tropical Rain Forest
2. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Taiga
Australopithecus Afarensis
Montreal Protocol
Tundra
3. The rapid increase of harmful algae in a body of water.
Harmful Algal Bloom
Methane
Assimilation
Montreal Protocol
4. The process of a gas transforming into a liquid.
Clean Air Act
Condensation
Hydrosphere
Commensalism
5. An extinct hominid species believed to have long - ape-like arms; have a brain capacity half that of modern men; and use primitive tools.
Competitive Exclusion
Deserts
Australopithecus Afarensis
Homo Habilis
6. The coexistence of two species using the same resource where the two will use the resource in different ways.
R-Selected Populations
Resource Partitioning
Polyculture
Population
7. Excess water which cannot be infiltrated into the soil and instead flows along the ground.
UN Conference on Population and Development
Wildlife Management
Surface Run-Off
Evapotranspiration
8. All of the water found on earth.
Tundra
Chaparral
Nitrogen Fixation
Hydrosphere
9. Organisms which create their own food out of inorganic (abiotic) substances.
Producers
Air Pollution
Detrivores
Methane
10. Organisms which eat other organisms.
Nitrous Oxide
Clean Air Act
Safe Drinking Water Act
Consumers
11. 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.
UN Conference on Population and Development
Insurance Spraying
Nitrous Oxide
Intensive Subsistence Farming
12. The rate at which producers create organic material.
Autotrophs
Gross Primary Product
Environmental Protection Agency
Coniferous Forest
13. Precipitation which does not reach the soil but is instead collected by plants.
Interception
Gross Primary Product
Kyoto Protocol
Coniferous Forest
14. An American environmentalist who is famous for promoting the ideas of environmental ethics and wildlife management.
Aldo Leopold
Ecosystem
Eukaryotes
Air Pollution
15. An agency created to establish regulations concerning pollutants to protect humans and the environment.
World Trade Organization
Aldo Leopold
Environmental Protection Agency
Gross Primary Product
16. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Denitrification
Evapotranspiration
Chaparral
Thermosphere
17. A UN conference that addressed the growing population problem.
Homo Habilis
UN Conference on Population and Development
Social Ecology
Trophic Level
18. Consumers which eat both plants and animals.
Ozone
Omnivores
Superfund Law
Wilderness Act
19. The crust and upper mantle of the earth.
Lithosphere
Assimilation
Ecology
Australopithecus Afarensis
20. An act which required the EPA to set standards for drinking water.
Carbon Dioxide
Symbiosis
Safe Drinking Water Act
Carnivores
21. A partially enclosed part of the ocean with rivers or streams flowing into it.
Estuary
Homo Sapiens
Brackish Water
Coniferous Forest
22. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Ozone
Grasslands
Mesosphere
Ecological Niche
23. The middle atmospheric layer. Meteors burn up after entering this layer.
Speciation
Mesosphere
Homo Habilis
Monoculture
24. The process of surface water entering the soil. This ensures that plants have adequate access to water.
Antarctica
Endangered Species Act
Shifting Agriculture
Infiltration
25. A type of symbiosis where each species will benefit from interacting with the other.
Mutualism
Nitrification
Trophic Level
Air Pollution
26. 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
Transpiration
Keystone Species
Earth Summit
Air Pollution
27. A type of symbiosis where one species benefit at the expense of the other.
Species
Denitrification
Ecological Niche
Parasitism
28. 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.
Grasslands
Organism
Snowmelt
Acid Rain
29. The process by which certain kinds of bacteria convert atmospheric nitrogen gas into ammonia - a form accessible to living creatures.
Nitrogen Fixation
Superfund Law
Coniferous Forest
Intensive Subsistence Farming
30. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.
Subsurface flow
Superfund Law
Ecological Niche
Omnivores
31. Single-celled organisms which lack a nucleus.
Monoculture
Tropopause
Grazers
Prokaryotes
32. The amount of pests needed before spraying pesticides is economical.
Economic Threshold
Agroforestry
Temperate Rain Forest
Antarctica
33. Populations characterized by small size - short lifespan - and lots of offspring.
R-Selected Populations
Ecotone
Intensive Subsistence Farming
Denitrification
34. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
Speciation
Detrivores
Nitrification
Polyculture
35. Consumers which eat decomposing organic material.
Thermosphere
Tundra
Parasitism
Detrivores
36. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Cosmetic Spraying
Sublimation
Tundra
Monoculture
37. Organisms which produce their own food.
Infiltration
Hetrotrophs
Community
Autotrophs
38. The loss of water vapor from leaves.
Consumers
Montreal Protocol
Mesosphere
Transpiration
39. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.
Aldo Leopold
Air Pollution
Turbidity
Ammonification
40. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Thermosphere
Acid Rain
Homo Erectus
Endangered Species Act
41. Organisms with a nucleus.
Silent Spring
Safe Drinking Water Act
Eukaryotes
Speciation
42. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.
Endangered Species Act
Ecotone
Stratosphere
Montreal Protocol
43. Modern man.
Commensalism
Interplanting
Homo Sapiens
Temperate Rain Forest
44. A rainforest in the temperate zone which receives heavy rainfall.
Cosmetic Spraying
Temperate Rain Forest
Environmental Ethics
Wilderness Act
45. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Biogeochemical Cycle
Biodiversity
Neanderthals
Parasitism
46. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Chaparral
Population
Precipitation
Lithosphere
47. 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.
Thermosphere
Chaparral
Community
Polyculture
48. The UN's first major conference on environmental issues.
Stockholm Conference
Consumers
Advection
Sublimation
49. An act requiring federal agencies to detail the impact of proposed environmental policies.
Agroforestry
Deciduous Forest
National Environmental Policy Act
Nitrous Oxide
50. All members of a species which live in the same area.
Tropical Rain Forest
Eutrophication
Population
Biodiversity