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Test your basic knowledge |
DSST Environment And Humanity
Start Test
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Subjects
:
dsst
,
science
Instructions:
Answer 50 questions in 15 minutes.
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.
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 keep produce from any injuries or damage.
Economic Threshold
Cosmetic Spraying
Homo Erectus
Neanderthals
2. A group of similar organisms capable of interbreeding.
Species
Organism
K-Selected Populations
Omnivores
3. Consumers which eat both plants and animals.
Gross Primary Product
Environmental Protection Agency
Omnivores
Evaporation
4. The position of an organism on the food chain.
Trophic Level
Social Ecology
Indicator Species
Environmental Protection Agency
5. The rate at which producers create organic material.
Interplanting
Gross Primary Product
Commensalism
Endangered Species Act
6. A layer of gasses surrounding the earth.
Transpiration
Methane
Atmosphere
Savannah
7. The middle atmospheric layer. Meteors burn up after entering this layer.
UN Conference on Population and Development
Mesosphere
Subsurface flow
Endangered Species Act
8. Different species living in close contact with each other.
Symbiosis
Ecosystem
Homo Sapiens
Biosphere
9. The process of surface water entering the soil. This ensures that plants have adequate access to water.
Nitrogen Fixation
Alley Cropping
Ecological Niche
Infiltration
10. Organisms which consume autotrophs for food.
Mesosphere
Hetrotrophs
Environmental Protection Agency
Antarctica
11. The amount of pests needed before spraying pesticides is economical.
Prokaryotes
Tropical Rain Forest
Environmental Protection Agency
Economic Threshold
12. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Evaporation
Harmful Algal Bloom
Deserts
Grasslands
13. An act which protects certain lands as national parks.
Troposphere
Wilderness Act
Kyoto Protocol
Producers
14. Evolution in one organism due to change in a related organism.
Chaparral
Coevolution
Detrivores
Subsurface flow
15. 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.
Competitive Exclusion
Safe Drinking Water Act
Ecotone
Lithosphere
16. The process of planting different plant species right next to each other to maximize one's yield.
Social Ecology
Interplanting
Detrivores
Nitrification
17. The process by which certain kinds of bacteria convert atmospheric nitrogen gas into ammonia - a form accessible to living creatures.
Air Pollution
Species
Nitrogen Fixation
Environmental Ethics
18. A theory that our current ecological problems are a product of deeper social problems.
Browsers
Infiltration
Chaparral
Social Ecology
19. A community of species interacting with their nonliving (abiotic) environment.
Ecosystem
Exosphere
Tropopause
Biodiversity
20. Biomes far north in North America - Europe - and Asia which - due to very low temperatures - cannot support tree growth.
Tundra
Browsers
Turbidity
Ecosystem
21. A type of farming where the farmer will grow just enough crops to satisfy his family's needs for the next year.
Subsistence Farming
Stockholm Conference
Insurance Spraying
Ecological Niche
22. A situation where a layer of warmer air traps lower - cooler air - causing pollution to collect near the ground.
Temperature Inversion
Subsurface flow
Aldo Leopold
Coniferous Forest
23. Excess water which cannot be infiltrated into the soil and instead flows along the ground.
Surface Run-Off
Resource Partitioning
UN Conference on Population and Development
Oligotrophs
24. A forest characterized by clearly differentiated seasons - such as the trees loosing leaves in the fall and heavy snowfall in the winter.
Grazers
Indicator Species
Ozone
Deciduous Forest
25. Consumers which eat decomposing organic material.
Detrivores
Vienna Convention for the Protection of the Ozone Layer
Insurance Spraying
Consumers
26. A partially enclosed part of the ocean with rivers or streams flowing into it.
Insurance Spraying
Estuary
Keystone Species
Turbidity
27. Animals which eat leaves and shoots.
Mesosphere
Infiltration
Interception
Browsers
28. The biggest atmospheric layer. Without ozone - UV radiation causes ionization and the auroras in this layer.
Endangered Species Act
Thermosphere
Shifting Agriculture
Estuary
29. The conversion of nitrates into nitrogen gas.
Denitrification
K-Selected Populations
Intensive Subsistence Farming
Neanderthals
30. A UN conference that addressed the growing population problem.
Intensive Subsistence Farming
UN Conference on Population and Development
Air Pollution
Resource Partitioning
31. 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.
Taiga
Biogeochemical Cycle
Water Pollution Control Act
Wildlife Management
32. 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.
Organism
Speciation
Environmental Ethics
Neanderthals
33. Surface run-off caused by melted snow.
Subsistence Farming
Carnivores
Deserts
Snowmelt
34. A forest found in temperate regions with warm summers - cool winters - and plenty of rainfall. These kinds of forests are characterized by evergreens and deciduous trees.
Detrivores
Coniferous Forest
Tropical Rain Forest
Agroforestry
35. The loss of water vapor from leaves.
Montreal Protocol
Mesosphere
Organism
Transpiration
36. 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.
Biomes
Eutrophication
Indicator Species
K-Selected Populations
37. 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.
Keystone Species
Acid Rain
Resource Partitioning
Deserts
38. 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
Eukaryotes
Detrivores
Estuary
39. A type of symbiosis where one species benefit at the expense of the other.
Ecological Niche
Social Ecology
Parasitism
Chaparral
40. An American environmentalist who is famous for promoting the ideas of environmental ethics and wildlife management.
Transpiration
Aldo Leopold
Ecosystem
Savannah
41. An influential book by Rachel Carson which helped begin the environmental movement.
Biosphere
Alley Cropping
Silent Spring
Keystone Species
42. A variety of species living together.
Community
Advection
Detrivores
Temperature Inversion
43. The study of the interaction between organisms and their environment.
National Environmental Policy Act
Producers
Evapotranspiration
Ecology
44. The process of a substance passing directly from the solid phase to the gaseous phase - and vice versa.
Sublimation
Copiotrophs
Methane
Clean Air Act
45. Precipitation which does not reach the soil but is instead collected by plants.
Interception
Homo Sapiens
Denitrification
Tropical Rain Forest
46. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Lithosphere
Temperate Rain Forest
Savannah
Keystone Species
47. The rapid increase of harmful algae in a body of water.
Assimilation
Coevolution
Harmful Algal Bloom
Biosphere
48. An international organization designed to promote free trade between countries.
World Trade Organization
Transpiration
Intensive Subsistence Farming
Evaporation
49. Populations characterized by small size - short lifespan - and lots of offspring.
Tropopause
Wilderness Act
R-Selected Populations
Earth Summit
50. The process of a gas transforming into a liquid.
Sublimation
R-Selected Populations
Condensation
Water Pollution Control Act
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