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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. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Temperate Rain Forest
Symbiosis
Neanderthals
Subsurface flow
2. The second atmospheric layer. The ozone layer is found here - increasing the temperature with altitude.
Ammonification
Stratosphere
Taiga
Temperate Rain Forest
3. 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.
Eutrophication
Intensive Subsistence Farming
Sahelanthropus Tchadensis
Ecology
4. 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.
Ozone
Lithosphere
Australopithecus Afarensis
Wildlife Management
5. A UN conference that addressed the growing population problem.
Gross Primary Product
Thermosphere
Trophic Level
UN Conference on Population and Development
6. Integrating rows of trees alongside crops to provide mulch and shade - retain water in the soil - and promote sustainable land use.
Agroforestry
Assimilation
Coevolution
Air Pollution
7. 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.
Clean Air Act
Acid Rain
Wildlife Management
Keystone Species
8. 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.
Surface Run-Off
Interplanting
Deserts
Biosphere
9. A variety of species living together.
Tropopause
Coevolution
Community
Subsistence Farming
10. Precipitation which does not reach the soil but is instead collected by plants.
Temperate Rain Forest
Interception
Species
Endangered Species Act
11. An act which required the EPA to set standards for drinking water.
National Environmental Policy Act
Safe Drinking Water Act
World Trade Organization
Endangered Species Act
12. Modern man.
Evapotranspiration
Homo Sapiens
Surface Run-Off
Mesosphere
13. The process by which the sun's energy converts liquid water to water vapor in the atmosphere.
Advection
Evaporation
Oligotrophs
Clean Air Act
14. Consumers which eat only other animals.
Carnivores
Eutrophication
Hydrologic Cycle
Earth Summit
15. 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
Trophic Level
Australopithecus Afarensis
K-Selected Populations
16. An American environmentalist who is famous for promoting the ideas of environmental ethics and wildlife management.
Turbidity
Population
Aldo Leopold
Polyculture
17. Organisms which eat other organisms.
Neanderthals
Consumers
Symbiosis
Tropical Rain Forest
18. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Deciduous Forest
Non-government Organizations
Australopithecus Afarensis
Copiotrophs
19. 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.
Non-government Organizations
Taiga
Mesosphere
Endangered Species Act
20. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Ammonification
Grasslands
UN Conference on Population and Development
Kyoto Protocol
21. The spraying of pesticides to keep produce from any injuries or damage.
Cosmetic Spraying
Polyculture
Copiotrophs
Mesosphere
22. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Precipitation
Grazers
Tundra
Sublimation
23. 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.
Biosphere
Homo Erectus
Grazers
Temperature Inversion
24. 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
Carnivores
Polyculture
Antarctica
Producers
25. An influential book by Rachel Carson which helped begin the environmental movement.
Eukaryotes
Turbidity
Silent Spring
Tropical Rain Forest
26. An extinct hominid species believed to be the last common ancestor between man and apes.
Monoculture
Autotrophs
Sahelanthropus Tchadensis
Subsurface flow
27. The coexistence of two species using the same resource where the two will use the resource in different ways.
Gross Primary Product
Resource Partitioning
Methane
Silent Spring
28. A UN conference held in Rio de Janeiro. The conference decided to protect biodiversity - reduce pollution emissions and greenhouse gasses - and promote sustainable development.
Earth Summit
Acid Rain
Chaparral
UN Conference on Population and Development
29. Animals which eat grass and roots.
Biomes
Hydrosphere
Neanderthals
Grazers
30. The cloudiness of a liquid due to small suspended particles.
Precipitation
Commensalism
Turbidity
UN Conference on Population and Development
31. A group of similar organisms capable of interbreeding.
Savannah
Species
Wildlife Management
Denitrification
32. A greenhouse gas which also plays a key role in regulating ozone levels.
Alley Cropping
Deserts
Homo Habilis
Nitrous Oxide
33. The crust and upper mantle of the earth.
Homo Erectus
Indicator Species
Lithosphere
Agroforestry
34. Different species living in close contact with each other.
Transpiration
Insurance Spraying
Symbiosis
Neanderthals
35. An international protocol designed to stabilize global warming.
Environmental Ethics
Exosphere
Population
Kyoto Protocol
36. A forest characterized by clearly differentiated seasons - such as the trees loosing leaves in the fall and heavy snowfall in the winter.
Chaparral
Subsistence Farming
Deciduous Forest
Temperate Rain Forest
37. A partially enclosed part of the ocean with rivers or streams flowing into it.
Ozone
Savannah
Deserts
Estuary
38. 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.
Speciation
Sublimation
Consumers
Agroforestry
39. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Alley Cropping
Exosphere
Evapotranspiration
Population
40. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Total Fertility Rate
Tropopause
Community
R-Selected Populations
41. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Deserts
Sublimation
Biomes
Turbidity
42. 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
Shifting Agriculture
Copiotrophs
43. The study of the interaction between organisms and their environment.
Earth Summit
Competitive Exclusion
Detrivores
Ecology
44. 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
Omnivores
Air Pollution
Precipitation
Deserts
45. All of the water found on earth.
Ecology
Hydrosphere
Resource Partitioning
Parasitism
46. Single-celled organisms which lack a nucleus.
Ecological Niche
Prokaryotes
Population
Interplanting
47. Organisms which thrive in high nutrient environments - especially those with plenty of carbon.
Copiotrophs
Surface Run-Off
Social Ecology
Denitrification
48. The rapid increase of harmful algae in a body of water.
Harmful Algal Bloom
Toxic Substances Control Act
Snowmelt
Ecology
49. 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.
Sublimation
UN Conference on Population and Development
Detrivores
Shifting Agriculture
50. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.
Atmosphere
Wilderness Act
Biogeochemical Cycle
Methane