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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. Organisms with a nucleus.
Total Fertility Rate
Polyculture
Environmental Ethics
Eukaryotes
2. A type of symbiosis where one species will benefit while the other will be neither benefit or be harmed.
Coniferous Forest
Non-government Organizations
Commensalism
National Environmental Policy Act
3. Evolution in one organism due to change in a related organism.
Estuary
Species
Coevolution
Autotrophs
4. A forest characterized by clearly differentiated seasons - such as the trees loosing leaves in the fall and heavy snowfall in the winter.
Coniferous Forest
Deciduous Forest
Sahelanthropus Tchadensis
Hydrologic Cycle
5. 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.
Endangered Species Act
Acid Rain
Ozone
Stockholm Conference
6. The crust and upper mantle of the earth.
Harmful Algal Bloom
Evapotranspiration
Assimilation
Lithosphere
7. 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.
Producers
Endangered Species Act
Speciation
Assimilation
8. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Ecology
Ecological Niche
Snowmelt
Carnivores
9. A type of farming where the farmer will grow just enough crops to satisfy his family's needs for the next year.
Subsistence Farming
Nitrogen Fixation
Carnivores
Non-government Organizations
10. An act requiring federal agencies to detail the impact of proposed environmental policies.
Sahelanthropus Tchadensis
R-Selected Populations
National Environmental Policy Act
Vienna Convention for the Protection of the Ozone Layer
11. The spraying of pesticides to prevent a pest problem before it happens.
Stockholm Conference
Indicator Species
Taiga
Insurance Spraying
12. Consumers which eat only other animals.
Environmental Ethics
Carnivores
Symbiosis
Grasslands
13. An act which set standards for the amount of pollution in water.
Water Pollution Control Act
Lithosphere
Community
Ammonification
14. 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.
Hydrologic Cycle
Advection
Detrivores
Endangered Species Act
15. The cloudiness of a liquid due to small suspended particles.
Air Pollution
Autotrophs
Antarctica
Turbidity
16. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Keystone Species
Assimilation
Nitrification
Savannah
17. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Precipitation
Earth Summit
Denitrification
Air Pollution
18. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Temperate Rain Forest
Tropopause
Interplanting
Neanderthals
19. A layer of gasses surrounding the earth.
Oligotrophs
Temperate Rain Forest
Carnivores
Atmosphere
20. 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.
Atmosphere
Interplanting
Intensive Subsistence Farming
Infiltration
21. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Prokaryotes
Monoculture
Hetrotrophs
Neanderthals
22. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Symbiosis
Troposphere
Infiltration
Superfund Law
23. An influential book by Rachel Carson which helped begin the environmental movement.
Keystone Species
Biosphere
Atmosphere
Silent Spring
24. Excess water which cannot be infiltrated into the soil and instead flows along the ground.
Mutualism
Consumers
Surface Run-Off
Gross Primary Product
25. The process by which pollutants are carried by flowing water - such as a river.
Copiotrophs
Advection
Species
Hydrosphere
26. The process by which certain kinds of bacteria convert atmospheric nitrogen gas into ammonia - a form accessible to living creatures.
UN Conference on Population and Development
Condensation
Brackish Water
Nitrogen Fixation
27. An act which protects certain lands as national parks.
Wilderness Act
Wildlife Management
Speciation
Carbon Dioxide
28. Species which react quickly to an environmental change and therefore can be used to diagnose a particular ecosystem.
Infiltration
Water Pollution Control Act
Tundra
Indicator Species
29. All of the water found on earth.
Sahelanthropus Tchadensis
Superfund Law
Evaporation
Hydrosphere
30. 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.
Deserts
Biogeochemical Cycle
Kyoto Protocol
Eutrophication
31. Different species living in close contact with each other.
Symbiosis
Lithosphere
Savannah
Hetrotrophs
32. Organisms which thrive in low nutrient environments and usually have slow growth rates.
Insurance Spraying
Oligotrophs
Savannah
Toxic Substances Control Act
33. Precipitation which does not reach the soil but is instead collected by plants.
K-Selected Populations
Interception
Producers
Ecotone
34. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Thermosphere
Alley Cropping
Stockholm Conference
Troposphere
35. 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.
Sahelanthropus Tchadensis
Oligotrophs
Biomes
Taiga
36. 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
Homo Habilis
Harmful Algal Bloom
Nitrogen Fixation
37. Populations characterized by large size - long lifespan - and few offspring.
K-Selected Populations
Autotrophs
Clean Air Act
Carnivores
38. Populations characterized by small size - short lifespan - and lots of offspring.
R-Selected Populations
Interception
Ozone
Exosphere
39. The second atmospheric layer. The ozone layer is found here - increasing the temperature with altitude.
Stratosphere
Tundra
World Trade Organization
Endangered Species Act
40. 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.
Wildlife Management
R-Selected Populations
Homo Erectus
Autotrophs
41. Political organizations not affiliated with the government which try to bring about social change.
Grasslands
Competitive Exclusion
Aldo Leopold
Non-government Organizations
42. 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
Symbiosis
World Trade Organization
Eukaryotes
43. A UN conference that addressed the growing population problem.
Carnivores
UN Conference on Population and Development
Ecotone
Nitrous Oxide
44. 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.
Acid Rain
Grasslands
Nitrous Oxide
Mesosphere
45. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.
Infiltration
Harmful Algal Bloom
Symbiosis
Montreal Protocol
46. 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.
Biodiversity
Hydrosphere
Estuary
Montreal Protocol
47. 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.
Carnivores
Hetrotrophs
Producers
Tropical Rain Forest
48. A variety of species living together.
R-Selected Populations
Tropical Rain Forest
Community
Indicator Species
49. The position of an organism on the food chain.
Trophic Level
Ecology
Hydrologic Cycle
Precipitation
50. Modern man.
Indicator Species
Homo Sapiens
Detrivores
Denitrification