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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 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.
Biomes
Chaparral
Infiltration
Interplanting
2. The study of the interaction between organisms and their environment.
Ecology
Competitive Exclusion
Deciduous Forest
Evapotranspiration
3. Animals which eat grass and roots.
Vienna Convention for the Protection of the Ozone Layer
Monoculture
Grazers
Insurance Spraying
4. 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.
Troposphere
Monoculture
Wildlife Management
Gross Primary Product
5. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.
Tropical Rain Forest
Montreal Protocol
Biosphere
Denitrification
6. The spraying of pesticides to prevent a pest problem before it happens.
Chaparral
Insurance Spraying
Trophic Level
Carbon Dioxide
7. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.
Chaparral
Brackish Water
Nitrogen Fixation
Toxic Substances Control Act
8. A type of symbiosis where each species will benefit from interacting with the other.
Silent Spring
Mutualism
Transpiration
Omnivores
9. The flow of water in the water table.
Subsurface flow
Species
Community
Population
10. Biomes far north in North America - Europe - and Asia which - due to very low temperatures - cannot support tree growth.
Parasitism
Tundra
Antarctica
Tropical Rain Forest
11. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Sublimation
Population
Aldo Leopold
Environmental Protection Agency
12. The process of surface water entering the soil. This ensures that plants have adequate access to water.
Thermosphere
Consumers
Infiltration
Ecotone
13. A partially enclosed part of the ocean with rivers or streams flowing into it.
Grasslands
Estuary
Community
Nitrous Oxide
14. Growing only one crop at a time.
Omnivores
Resource Partitioning
Monoculture
Grasslands
15. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Interception
Precipitation
Transpiration
Biogeochemical Cycle
16. Excess water which cannot be infiltrated into the soil and instead flows along the ground.
Eukaryotes
Air Pollution
Ecology
Surface Run-Off
17. The process by which pollutants are carried by flowing water - such as a river.
Advection
Mesosphere
Ozone
Transpiration
18. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.
Indicator Species
National Environmental Policy Act
Superfund Law
Oligotrophs
19. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
Nitrification
Total Fertility Rate
Taiga
Environmental Protection Agency
20. Growing more than one crop at a time.
Eukaryotes
Polyculture
Carbon Dioxide
Community
21. A group of similar organisms capable of interbreeding.
Lithosphere
Species
Ammonification
Nitrogen Fixation
22. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Tropopause
Eukaryotes
Acid Rain
Ecological Niche
23. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Australopithecus Afarensis
Population
Organism
Aldo Leopold
24. A theory that our current ecological problems are a product of deeper social problems.
Social Ecology
Assimilation
Temperature Inversion
Intensive Subsistence Farming
25. A greenhouse gas which also plays a key role in regulating ozone levels.
Nitrous Oxide
Oligotrophs
Hydrologic Cycle
Omnivores
26. Average expected birth rate for 1 -000 women.
Thermosphere
Acid Rain
Total Fertility Rate
Precipitation
27. 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.
Subsurface flow
Prokaryotes
Homo Erectus
Autotrophs
28. All members of a species which live in the same area.
Harmful Algal Bloom
Oligotrophs
Transpiration
Population
29. Consumers which eat decomposing organic material.
Clean Air Act
Detrivores
Omnivores
Oligotrophs
30. The amount of pests needed before spraying pesticides is economical.
Transpiration
Detrivores
Carbon Dioxide
Economic Threshold
31. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Wildlife Management
Cosmetic Spraying
Neanderthals
Australopithecus Afarensis
32. The rapid increase of harmful algae in a body of water.
Oligotrophs
Harmful Algal Bloom
Exosphere
Carbon Dioxide
33. The process of planting trees in between other crops.
Subsistence Farming
Prokaryotes
Tropopause
Alley Cropping
34. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Condensation
Deciduous Forest
Prokaryotes
Keystone Species
35. All of the water found on earth.
Hydrosphere
Nitrification
Estuary
Clean Air Act
36. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Detrivores
Endangered Species Act
Homo Erectus
Savannah
37. Organisms with a nucleus.
Hetrotrophs
Alley Cropping
Nitrogen Fixation
Eukaryotes
38. 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.
Savannah
Acid Rain
Biosphere
Ecological Niche
39. 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.
Sahelanthropus Tchadensis
Taiga
Intensive Subsistence Farming
Surface Run-Off
40. An international protocol designed to stabilize global warming.
Oligotrophs
Prokaryotes
Kyoto Protocol
Superfund Law
41. The cloudiness of a liquid due to small suspended particles.
Turbidity
Species
Stratosphere
Troposphere
42. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Methane
Tundra
Atmosphere
Tropopause
43. An act created to protect endangered and threatened species.
Tropopause
Lithosphere
Grazers
Endangered Species Act
44. 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.
Environmental Protection Agency
Organism
Taiga
Grazers
45. An American environmentalist who is famous for promoting the ideas of environmental ethics and wildlife management.
Consumers
Subsistence Farming
Aldo Leopold
Neanderthals
46. An act requiring federal agencies to detail the impact of proposed environmental policies.
Earth Summit
Autotrophs
Speciation
National Environmental Policy Act
47. An international convention which created the framework for protecting the ozone layer.
Deciduous Forest
Surface Run-Off
Keystone Species
Vienna Convention for the Protection of the Ozone Layer
48. The middle atmospheric layer. Meteors burn up after entering this layer.
Eutrophication
Deciduous Forest
Subsistence Farming
Mesosphere
49. An act which established and enforced acceptable levels of air pollution.
Temperature Inversion
Clean Air Act
Mesosphere
Advection
50. The uppermost atmospheric layer. Here satellites orbit the earth.
Symbiosis
Speciation
Coevolution
Exosphere