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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. 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
Biosphere
Symbiosis
K-Selected Populations
2. 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.
Carnivores
Competitive Exclusion
Surface Run-Off
Stratosphere
3. All of the water found on earth.
Hydrosphere
Insurance Spraying
Chaparral
Safe Drinking Water Act
4. A group of similar organisms capable of interbreeding.
Savannah
Resource Partitioning
Species
Carbon Dioxide
5. 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.
Vienna Convention for the Protection of the Ozone Layer
Organism
Taiga
Advection
6. The amount of pests needed before spraying pesticides is economical.
Evaporation
Tropopause
Economic Threshold
Harmful Algal Bloom
7. An international convention which created the framework for protecting the ozone layer.
Detrivores
Vienna Convention for the Protection of the Ozone Layer
Thermosphere
Montreal Protocol
8. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Keystone Species
Temperature Inversion
Monoculture
Biomes
9. An extinct hominid species believed to be the last common ancestor between man and apes.
Oligotrophs
Alley Cropping
Sahelanthropus Tchadensis
Water Pollution Control Act
10. Also called that water cycle - this process describes the cycling of water throughout the environment. The stages of this cycle are evaporation - condensation - transportation - precipitation - infiltration and percolation - and run off.
Biosphere
Gross Primary Product
Coniferous Forest
Hydrologic Cycle
11. A transitional area between two different ecosystems.
Atmosphere
Montreal Protocol
Ecotone
Water Pollution Control Act
12. Evolution in one organism due to change in a related organism.
Species
Kyoto Protocol
Coevolution
Ecotone
13. The process of planting different plant species right next to each other to maximize one's yield.
Grasslands
Interplanting
Coevolution
Superfund Law
14. The process by which the sun's energy converts liquid water to water vapor in the atmosphere.
Evaporation
Subsurface flow
Hydrologic Cycle
Species
15. A variety of species living together.
Community
Homo Sapiens
Environmental Ethics
Homo Habilis
16. An act which required the EPA to set standards for drinking water.
Thermosphere
Precipitation
Safe Drinking Water Act
Parasitism
17. A situation where a layer of warmer air traps lower - cooler air - causing pollution to collect near the ground.
Hydrologic Cycle
Grasslands
Consumers
Temperature Inversion
18. An extinct hominid species believed to have long - ape-like arms; have a brain capacity half that of modern men; and use primitive tools.
Homo Habilis
Commensalism
Total Fertility Rate
Ecological Niche
19. An agency created to establish regulations concerning pollutants to protect humans and the environment.
Environmental Protection Agency
Keystone Species
Ecosystem
Water Pollution Control Act
20. Modern man.
Prokaryotes
Clean Air Act
Exosphere
Homo Sapiens
21. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Ecology
Silent Spring
Australopithecus Afarensis
Snowmelt
22. 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.
Intensive Subsistence Farming
Eutrophication
Homo Erectus
Insurance Spraying
23. Consumers which eat decomposing organic material.
Nitrogen Fixation
Detrivores
Air Pollution
Ecotone
24. A theory that our current ecological problems are a product of deeper social problems.
Wildlife Management
Montreal Protocol
Social Ecology
Trophic Level
25. The spraying of pesticides to keep produce from any injuries or damage.
Environmental Ethics
Superfund Law
Exosphere
Cosmetic Spraying
26. 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.
Lithosphere
Tropical Rain Forest
Temperate Rain Forest
Denitrification
27. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Australopithecus Afarensis
Evapotranspiration
World Trade Organization
Homo Habilis
28. Different species living in close contact with each other.
Symbiosis
Temperature Inversion
Condensation
Kyoto Protocol
29. The process of a gas transforming into a liquid.
Grasslands
Carbon Dioxide
Condensation
Nitrous Oxide
30. Biomes far north in North America - Europe - and Asia which - due to very low temperatures - cannot support tree growth.
Snowmelt
Water Pollution Control Act
Homo Sapiens
Tundra
31. An act which established and enforced acceptable levels of air pollution.
Estuary
Homo Erectus
Clean Air Act
Ecology
32. 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.
Montreal Protocol
K-Selected Populations
Polyculture
Acid Rain
33. Consumers which eat only other animals.
Lithosphere
National Environmental Policy Act
Snowmelt
Carnivores
34. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
K-Selected Populations
Nitrification
Environmental Protection Agency
Indicator Species
35. Organisms which thrive in low nutrient environments and usually have slow growth rates.
K-Selected Populations
Advection
Ecosystem
Oligotrophs
36. The middle atmospheric layer. Meteors burn up after entering this layer.
Non-government Organizations
Mesosphere
Biogeochemical Cycle
Ecology
37. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Keystone Species
UN Conference on Population and Development
Savannah
Neanderthals
38. The loss of water vapor from leaves.
Transpiration
Community
Condensation
Vienna Convention for the Protection of the Ozone Layer
39. Excess water which cannot be infiltrated into the soil and instead flows along the ground.
Trophic Level
Organism
Surface Run-Off
Denitrification
40. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.
Species
Ecological Niche
Sahelanthropus Tchadensis
Brackish Water
41. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Tropopause
Polyculture
Coniferous Forest
Commensalism
42. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Temperature Inversion
World Trade Organization
Troposphere
Superfund Law
43. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.
Kyoto Protocol
Montreal Protocol
Parasitism
Eukaryotes
44. 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.
Monoculture
Eutrophication
Shifting Agriculture
Air Pollution
45. Organisms which produce their own food.
Lithosphere
Autotrophs
Subsistence Farming
Tundra
46. Political organizations not affiliated with the government which try to bring about social change.
Indicator Species
Total Fertility Rate
Non-government Organizations
Resource Partitioning
47. All of the ecosystems on earth.
Biosphere
Interception
Environmental Protection Agency
Transpiration
48. A UN conference that addressed the growing population problem.
Autotrophs
UN Conference on Population and Development
Nitrous Oxide
Superfund Law
49. Animals which eat grass and roots.
Grazers
Biodiversity
Subsistence Farming
Non-government Organizations
50. The conversion of nitrates into nitrogen gas.
Air Pollution
Cosmetic Spraying
Denitrification
Evaporation