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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. Evolution in one organism due to change in a related organism.
Keystone Species
Neanderthals
Coevolution
Homo Habilis
2. An act created to protect endangered and threatened species.
Evaporation
Agroforestry
Endangered Species Act
Silent Spring
3. 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.
Nitrogen Fixation
Environmental Ethics
Australopithecus Afarensis
Advection
4. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Lithosphere
Precipitation
Competitive Exclusion
Stockholm Conference
5. The rapid increase of harmful algae in a body of water.
Harmful Algal Bloom
Methane
Producers
Superfund Law
6. Growing more than one crop at a time.
Grasslands
Polyculture
Sublimation
Biodiversity
7. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Polyculture
Parasitism
Ecological Niche
Copiotrophs
8. The spraying of pesticides to keep produce from any injuries or damage.
Cosmetic Spraying
Lithosphere
Interception
Endangered Species Act
9. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Cosmetic Spraying
Neanderthals
Grazers
Evaporation
10. The process of a gas transforming into a liquid.
Precipitation
Condensation
Cosmetic Spraying
World Trade Organization
11. An act requiring federal agencies to detail the impact of proposed environmental policies.
National Environmental Policy Act
Biomes
Atmosphere
Homo Habilis
12. A rainforest in the temperate zone which receives heavy rainfall.
Biogeochemical Cycle
Homo Erectus
Gross Primary Product
Temperate Rain Forest
13. The southern-most continent - of which 98% is ice. This continent includes 70% of the world's fresh water - and 90% of the world's ice. Although the average temperature is -49
Ammonification
Antarctica
Hydrosphere
Wildlife Management
14. A type of farming where the farmer will grow just enough crops to satisfy his family's needs for the next year.
Evaporation
Clean Air Act
Economic Threshold
Subsistence Farming
15. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Savannah
Nitrogen Fixation
Social Ecology
Precipitation
16. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.
Superfund Law
Nitrogen Fixation
Homo Habilis
Troposphere
17. 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.
Chaparral
Taiga
Neanderthals
Lithosphere
18. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.
Australopithecus Afarensis
Methane
Copiotrophs
Ammonification
19. 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.
Shifting Agriculture
Atmosphere
Gross Primary Product
Omnivores
20. 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
Exosphere
Grasslands
Air Pollution
Sahelanthropus Tchadensis
21. All members of a species which live in the same area.
Interplanting
Troposphere
Population
Harmful Algal Bloom
22. The conversion of nitrates into nitrogen gas.
R-Selected Populations
Cosmetic Spraying
Population
Denitrification
23. The amount of pests needed before spraying pesticides is economical.
R-Selected Populations
Economic Threshold
K-Selected Populations
Intensive Subsistence Farming
24. A greenhouse gas. Although it is a natural part of the carbon cycle - the atmospheric concentration of this gas has increased due to the burning of fossil fuels.
Polyculture
Agroforestry
Carbon Dioxide
Condensation
25. The coexistence of two species using the same resource where the two will use the resource in different ways.
Resource Partitioning
Browsers
Economic Threshold
Denitrification
26. The process by which pollutants are carried by flowing water - such as a river.
Advection
Alley Cropping
Total Fertility Rate
Biomes
27. A type of symbiosis where one species benefit at the expense of the other.
Tropopause
Evaporation
Parasitism
Consumers
28. The flow of water in the water table.
Subsurface flow
Advection
Hetrotrophs
Silent Spring
29. A UN conference held in Rio de Janeiro. The conference decided to protect biodiversity - reduce pollution emissions and greenhouse gasses - and promote sustainable development.
Brackish Water
Nitrous Oxide
Earth Summit
Browsers
30. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Prokaryotes
Tropical Rain Forest
Troposphere
Eukaryotes
31. A forest characterized by clearly differentiated seasons - such as the trees loosing leaves in the fall and heavy snowfall in the winter.
Deciduous Forest
Total Fertility Rate
Tropopause
Parasitism
32. Surface run-off caused by melted snow.
Temperature Inversion
Snowmelt
Hydrosphere
Shifting Agriculture
33. Modern man.
Turbidity
Competitive Exclusion
Homo Erectus
Homo Sapiens
34. Populations characterized by large size - long lifespan - and few offspring.
K-Selected Populations
Autotrophs
Wilderness Act
Brackish Water
35. Organisms which create their own food out of inorganic (abiotic) substances.
Evaporation
Nitrogen Fixation
Homo Habilis
Producers
36. Biomes far north in North America - Europe - and Asia which - due to very low temperatures - cannot support tree growth.
Copiotrophs
Resource Partitioning
Montreal Protocol
Tundra
37. A community of species interacting with their nonliving (abiotic) environment.
UN Conference on Population and Development
Consumers
Symbiosis
Ecosystem
38. All of the water found on earth.
Eukaryotes
Autotrophs
Intensive Subsistence Farming
Hydrosphere
39. All of the ecosystems on earth.
Hydrosphere
Tropopause
Biosphere
Symbiosis
40. The process of surface water entering the soil. This ensures that plants have adequate access to water.
Carbon Dioxide
Environmental Protection Agency
Infiltration
Denitrification
41. 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.
Total Fertility Rate
Hydrologic Cycle
Coniferous Forest
Kyoto Protocol
42. Consumers which eat both plants and animals.
Carbon Dioxide
Transpiration
Symbiosis
Omnivores
43. 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.
Keystone Species
UN Conference on Population and Development
Interception
Deserts
44. A theory that our current ecological problems are a product of deeper social problems.
Tropical Rain Forest
Troposphere
Social Ecology
Interception
45. 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.
Resource Partitioning
Competitive Exclusion
Deciduous Forest
Precipitation
46. 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
Species
Antarctica
Subsurface flow
47. Growing only one crop at a time.
National Environmental Policy Act
Keystone Species
Monoculture
Tropical Rain Forest
48. 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
Mesosphere
Tropical Rain Forest
Prokaryotes
49. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
UN Conference on Population and Development
Economic Threshold
Toxic Substances Control Act
Acid Rain
50. Consumers which eat only other animals.
Biomes
Transpiration
Tropical Rain Forest
Carnivores