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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 spraying of pesticides to prevent a pest problem before it happens.
Insurance Spraying
Coniferous Forest
R-Selected Populations
Interception
2. 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.
Carnivores
Endangered Species Act
Homo Erectus
Harmful Algal Bloom
3. The process of planting trees in between other crops.
Alley Cropping
Keystone Species
Agroforestry
Water Pollution Control Act
4. An extinct hominid species believed to have the same brain capacity as modern man and use many different weapons.
Biogeochemical Cycle
Neanderthals
Lithosphere
Parasitism
5. Precipitation which does not reach the soil but is instead collected by plants.
Homo Erectus
Environmental Protection Agency
Australopithecus Afarensis
Interception
6. A community of similar living organisms largely affected by the area's climate.
Sublimation
Biomes
Community
Trophic Level
7. An extinct hominid species believed to have long - ape-like arms; have a brain capacity half that of modern men; and use primitive tools.
Snowmelt
Earth Summit
Wildlife Management
Homo Habilis
8. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Lithosphere
Thermosphere
Competitive Exclusion
Biodiversity
9. All of the ecosystems on earth.
Biosphere
Air Pollution
Hydrosphere
Symbiosis
10. 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.
Tropical Rain Forest
Ozone
Interplanting
Omnivores
11. An American environmentalist who is famous for promoting the ideas of environmental ethics and wildlife management.
Aldo Leopold
Nitrous Oxide
Methane
Denitrification
12. All of the water found on earth.
Community
Economic Threshold
Hydrosphere
Non-government Organizations
13. A form of management which attempts to satisfy both the needs of humans and those of wildlife in the best way possible for both parties.
Methane
Montreal Protocol
R-Selected Populations
Wildlife Management
14. Consumers which eat both plants and animals.
Earth Summit
Temperate Rain Forest
Aldo Leopold
Omnivores
15. The position of an organism on the food chain.
Autotrophs
Trophic Level
Wildlife Management
Subsurface flow
16. A layer of gasses surrounding the earth.
Atmosphere
Economic Threshold
Total Fertility Rate
Subsurface flow
17. The loss of water vapor from leaves.
Transpiration
K-Selected Populations
Total Fertility Rate
Mutualism
18. Organisms which consume autotrophs for food.
Endangered Species Act
Toxic Substances Control Act
Hetrotrophs
Superfund Law
19. A variety of species living together.
Acid Rain
Evaporation
Community
Hydrologic Cycle
20. 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.
Homo Erectus
Environmental Protection Agency
Nitrogen Fixation
Eutrophication
21. Average expected birth rate for 1 -000 women.
Temperate Rain Forest
Total Fertility Rate
Indicator Species
Coniferous Forest
22. Biomes far north in North America - Europe - and Asia which - due to very low temperatures - cannot support tree growth.
Wildlife Management
Producers
Tundra
Homo Habilis
23. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Savannah
R-Selected Populations
Toxic Substances Control Act
Methane
24. Organisms with a nucleus.
Oligotrophs
Eukaryotes
Ecological Niche
Wildlife Management
25. A type of symbiosis where one species benefit at the expense of the other.
Thermosphere
Ecosystem
Alley Cropping
Parasitism
26. Organisms which create their own food out of inorganic (abiotic) substances.
Producers
Earth Summit
Ecology
Oligotrophs
27. The study of the interaction between organisms and their environment.
Economic Threshold
Advection
Temperature Inversion
Ecology
28. A transitional area between two different ecosystems.
Montreal Protocol
Browsers
Biomes
Ecotone
29. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Grasslands
Wildlife Management
Alley Cropping
Kyoto Protocol
30. An act which established and enforced acceptable levels of air pollution.
Harmful Algal Bloom
Economic Threshold
Alley Cropping
Clean Air Act
31. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Economic Threshold
National Environmental Policy Act
Keystone Species
Coniferous Forest
32. The coexistence of two species using the same resource where the two will use the resource in different ways.
Resource Partitioning
Ecology
Methane
Homo Habilis
33. Modern man.
Homo Sapiens
Homo Habilis
Coniferous Forest
Taiga
34. Organisms which produce their own food.
Coevolution
Autotrophs
Aldo Leopold
Prokaryotes
35. Plants taking in nitrates from the soil.
Precipitation
R-Selected Populations
Resource Partitioning
Assimilation
36. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.
Deserts
Superfund Law
Ammonification
Mutualism
37. The process by which the sun's energy converts liquid water to water vapor in the atmosphere.
Atmosphere
Resource Partitioning
Kyoto Protocol
Evaporation
38. 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
K-Selected Populations
Parasitism
Subsurface flow
39. A theory that our current ecological problems are a product of deeper social problems.
Air Pollution
UN Conference on Population and Development
Neanderthals
Social Ecology
40. Growing more than one crop at a time.
Wildlife Management
Producers
Polyculture
Coevolution
41. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Monoculture
Gross Primary Product
Temperate Rain Forest
Tropopause
42. An agency created to establish regulations concerning pollutants to protect humans and the environment.
Commensalism
Environmental Protection Agency
Parasitism
Browsers
43. A community of species interacting with their nonliving (abiotic) environment.
Carnivores
Ecosystem
Homo Sapiens
Symbiosis
44. Organisms which thrive in high nutrient environments - especially those with plenty of carbon.
Temperature Inversion
Montreal Protocol
Copiotrophs
Endangered Species Act
45. The cycling and reusing of elements and molecules (such as water - nitrogen - and phosphorus) that are essential to life.
Commensalism
Biogeochemical Cycle
Harmful Algal Bloom
Thermosphere
46. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Tropical Rain Forest
Assimilation
Ecological Niche
Kyoto Protocol
47. Any living thing on earth.
K-Selected Populations
Organism
Hydrologic Cycle
Detrivores
48. An act which set standards for the amount of pollution in water.
Carbon Dioxide
Water Pollution Control Act
Condensation
Vienna Convention for the Protection of the Ozone Layer
49. A type of symbiosis where each species will benefit from interacting with the other.
Browsers
Evapotranspiration
Mutualism
Condensation
50. An international convention which created the framework for protecting the ozone layer.
Vienna Convention for the Protection of the Ozone Layer
Detrivores
Gross Primary Product
Parasitism