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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 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.
Browsers
Deciduous Forest
Producers
Competitive Exclusion
2. 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.
Omnivores
Temperature Inversion
Biodiversity
R-Selected Populations
3. The UN's first major conference on environmental issues.
Eukaryotes
Condensation
Stockholm Conference
Toxic Substances Control Act
4. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Non-government Organizations
Community
Wildlife Management
Troposphere
5. The process of planting trees in between other crops.
Alley Cropping
Keystone Species
Methane
Consumers
6. An influential book by Rachel Carson which helped begin the environmental movement.
UN Conference on Population and Development
Silent Spring
Environmental Protection Agency
Aldo Leopold
7. Organisms which consume autotrophs for food.
Symbiosis
Carbon Dioxide
Prokaryotes
Hetrotrophs
8. 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.
Tropical Rain Forest
Hetrotrophs
Safe Drinking Water Act
UN Conference on Population and Development
9. An international protocol designed to protect the ozone layer by phasing out the production of CFCs and other harmful chemicals.
Ecological Niche
Carbon Dioxide
Infiltration
Montreal Protocol
10. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Safe Drinking Water Act
Thermosphere
Shifting Agriculture
Homo Erectus
11. Consumers which eat only other animals.
Carnivores
Intensive Subsistence Farming
Infiltration
Interception
12. An act which called for the careful examination of new chemicals to ensure they are safe for their intended uses.
Toxic Substances Control Act
Homo Sapiens
Ecology
Tundra
13. A layer of gasses surrounding the earth.
Agroforestry
Atmosphere
Lithosphere
Homo Habilis
14. A type of farming where the farmer will grow just enough crops to satisfy his family's needs for the next year.
Acid Rain
Condensation
Subsistence Farming
Chaparral
15. Average expected birth rate for 1 -000 women.
Chaparral
Trophic Level
Total Fertility Rate
Intensive Subsistence Farming
16. Organisms with a nucleus.
Browsers
Biomes
Stockholm Conference
Eukaryotes
17. A situation where a layer of warmer air traps lower - cooler air - causing pollution to collect near the ground.
Population
Brackish Water
Kyoto Protocol
Temperature Inversion
18. Evolution in one organism due to change in a related organism.
R-Selected Populations
Deciduous Forest
Biomes
Coevolution
19. The rapid increase of harmful algae in a body of water.
R-Selected Populations
Biodiversity
Wildlife Management
Harmful Algal Bloom
20. 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.
Homo Erectus
Browsers
Taiga
Deciduous Forest
21. All of the ecosystems on earth.
Deserts
Biosphere
Estuary
Consumers
22. The process of a gas transforming into a liquid.
Chaparral
Wilderness Act
Endangered Species Act
Condensation
23. All of the water found on earth.
Exosphere
Hydrosphere
Subsistence Farming
Ecological Niche
24. 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
K-Selected Populations
Biogeochemical Cycle
Toxic Substances Control Act
25. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Antarctica
Australopithecus Afarensis
Deserts
Wildlife Management
26. Consumers which eat decomposing organic material.
Interception
Detrivores
Biosphere
Intensive Subsistence Farming
27. The study of the interaction between organisms and their environment.
Neanderthals
Trophic Level
Wilderness Act
Ecology
28. The crust and upper mantle of the earth.
Lithosphere
Australopithecus Afarensis
UN Conference on Population and Development
Ozone
29. The rate at which producers create organic material.
Producers
Mutualism
Sahelanthropus Tchadensis
Gross Primary Product
30. A theory that our current ecological problems are a product of deeper social problems.
Homo Sapiens
Coniferous Forest
Ecotone
Social Ecology
31. 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.
Nitrification
Estuary
Advection
Homo Erectus
32. An act which required the EPA to set standards for drinking water.
Tropical Rain Forest
Homo Sapiens
Safe Drinking Water Act
R-Selected Populations
33. 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
Speciation
Ozone
Intensive Subsistence Farming
34. 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
Ecosystem
Vienna Convention for the Protection of the Ozone Layer
Safe Drinking Water Act
35. A partially enclosed part of the ocean with rivers or streams flowing into it.
Sahelanthropus Tchadensis
Biomes
Estuary
World Trade Organization
36. An act which protects certain lands as national parks.
Atmosphere
Wilderness Act
Denitrification
Sublimation
37. The process by which the sun's energy converts liquid water to water vapor in the atmosphere.
Parasitism
Evaporation
Infiltration
Stockholm Conference
38. Modern man.
K-Selected Populations
Exosphere
Homo Sapiens
Interception
39. The spraying of pesticides to prevent a pest problem before it happens.
Competitive Exclusion
Nitrogen Fixation
Insurance Spraying
Consumers
40. The spraying of pesticides to keep produce from any injuries or damage.
Symbiosis
Evaporation
Cosmetic Spraying
Ecotone
41. Growing only one crop at a time.
Environmental Protection Agency
Keystone Species
Monoculture
Subsistence Farming
42. The position of an organism on the food chain.
Acid Rain
Earth Summit
Tropical Rain Forest
Trophic Level
43. Political organizations not affiliated with the government which try to bring about social change.
Non-government Organizations
Environmental Ethics
Carnivores
Acid Rain
44. Animals which eat grass and roots.
Grazers
Symbiosis
Intensive Subsistence Farming
Evapotranspiration
45. The process by which certain kinds of bacteria convert atmospheric nitrogen gas into ammonia - a form accessible to living creatures.
Ecology
Nitrogen Fixation
Trophic Level
Species
46. A law designed to locate toxic waste sites - gauge their pollution level - and ensure these sites are taken care of properly.
Advection
Superfund Law
Deserts
Ecology
47. The conversion of nitrates into nitrogen gas.
Denitrification
Transpiration
Indicator Species
Methane
48. A UN conference that addressed the growing population problem.
Omnivores
Safe Drinking Water Act
Biosphere
UN Conference on Population and Development
49. A variety of species living together.
Deserts
Nitrogen Fixation
Community
National Environmental Policy Act
50. The uppermost atmospheric layer. Here satellites orbit the earth.
Exosphere
Air Pollution
Earth Summit
Stratosphere