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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. 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.
Subsistence Farming
Deciduous Forest
Infiltration
Hydrologic Cycle
2. Grasslands with short - widely spaced trees and no canopy - allowing for an unbroken layer of grasses beneath.
Cosmetic Spraying
Wilderness Act
Hydrologic Cycle
Savannah
3. The first atmospheric layer. Most weather and pollution occurs here - and the temperature decreases with altitude.
Endangered Species Act
Troposphere
Insurance Spraying
Polyculture
4. A type of symbiosis where each species will benefit from interacting with the other.
Mutualism
Temperate Rain Forest
Population
Neanderthals
5. The rate at which producers create organic material.
Detrivores
Homo Erectus
Gross Primary Product
Mutualism
6. The process of a gas transforming into a liquid.
Tundra
Community
Ecology
Condensation
7. 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.
Taiga
Eutrophication
Intensive Subsistence Farming
Environmental Protection Agency
8. 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.
Polyculture
Consumers
Competitive Exclusion
Homo Erectus
9. A variety of species living together.
Harmful Algal Bloom
Community
Mesosphere
Evaporation
10. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Sublimation
Assimilation
Ecological Niche
Deserts
11. The decomposition of organic nitrogen into inorganic ammonium. This process is also called mineralization.
Deserts
Thermosphere
Ammonification
Vienna Convention for the Protection of the Ozone Layer
12. Organisms which eat other organisms.
Consumers
Carnivores
Eukaryotes
Biodiversity
13. Integrating rows of trees alongside crops to provide mulch and shade - retain water in the soil - and promote sustainable land use.
Ammonification
Environmental Protection Agency
Agroforestry
Eukaryotes
14. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Superfund Law
Environmental Ethics
Trophic Level
Grasslands
15. Precipitation which does not reach the soil but is instead collected by plants.
Coniferous Forest
Denitrification
Interception
Symbiosis
16. Organisms which consume autotrophs for food.
Clean Air Act
Keystone Species
Temperate Rain Forest
Hetrotrophs
17. An act which established and enforced acceptable levels of air pollution.
Non-government Organizations
Clean Air Act
Hetrotrophs
Biomes
18. The rapid increase of harmful algae in a body of water.
Savannah
Precipitation
Harmful Algal Bloom
Chaparral
19. Condensed water vapor which falls to earth. This comes in many forms - such as rain - snow - ice - and hail.
Precipitation
Economic Threshold
Temperature Inversion
Speciation
20. Average expected birth rate for 1 -000 women.
Total Fertility Rate
Sublimation
Consumers
Symbiosis
21. Organisms which thrive in low nutrient environments and usually have slow growth rates.
Oligotrophs
Stratosphere
Tropical Rain Forest
Commensalism
22. The process of planting different plant species right next to each other to maximize one's yield.
Water Pollution Control Act
Autotrophs
Interplanting
K-Selected Populations
23. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Stockholm Conference
Tropopause
Australopithecus Afarensis
National Environmental Policy Act
24. The combination of evaporation from the ocean - lakes - and other bodies of water and transpiration - the loss of water from plants.
Resource Partitioning
Hetrotrophs
Air Pollution
Evapotranspiration
25. A rainforest in the temperate zone which receives heavy rainfall.
Earth Summit
Australopithecus Afarensis
Cosmetic Spraying
Temperate Rain Forest
26. Populations characterized by large size - long lifespan - and few offspring.
Hydrologic Cycle
Estuary
K-Selected Populations
Coevolution
27. Species which serve key roles in an ecosystem. The absence of these important organisms is detrimental to the surrounding area.
Copiotrophs
Omnivores
Keystone Species
Troposphere
28. The spraying of pesticides to keep produce from any injuries or damage.
Cosmetic Spraying
Producers
Hydrosphere
Australopithecus Afarensis
29. An act created to protect endangered and threatened species.
Evapotranspiration
Endangered Species Act
Agroforestry
Hydrosphere
30. Organisms which produce their own food.
Eutrophication
Autotrophs
Biogeochemical Cycle
Ecological Niche
31. Surface run-off caused by melted snow.
Grasslands
Monoculture
Snowmelt
UN Conference on Population and Development
32. Different species living in close contact with each other.
Symbiosis
Deserts
Prokaryotes
Homo Habilis
33. Animals which eat leaves and shoots.
Biodiversity
Detrivores
Grazers
Browsers
34. Any living thing on earth.
Organism
Australopithecus Afarensis
Homo Habilis
Consumers
35. An American environmentalist who is famous for promoting the ideas of environmental ethics and wildlife management.
Aldo Leopold
Surface Run-Off
Australopithecus Afarensis
Infiltration
36. The process by which the sun's energy converts liquid water to water vapor in the atmosphere.
Evaporation
Organism
Oligotrophs
Biosphere
37. Animals which eat grass and roots.
Biomes
Grazers
Snowmelt
Producers
38. Populations characterized by small size - short lifespan - and lots of offspring.
Detrivores
Evaporation
Savannah
R-Selected Populations
39. Consumers which eat only other animals.
Oligotrophs
Savannah
Total Fertility Rate
Carnivores
40. 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
Safe Drinking Water Act
Stratosphere
Neanderthals
41. The uppermost atmospheric layer. Here satellites orbit the earth.
Exosphere
Estuary
Prokaryotes
Ecological Niche
42. 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.
Homo Erectus
Condensation
Methane
Harmful Algal Bloom
43. 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
Competitive Exclusion
Wildlife Management
Air Pollution
Commensalism
44. Consumers which eat both plants and animals.
Infiltration
Chaparral
Trophic Level
Omnivores
45. The middle atmospheric layer. Meteors burn up after entering this layer.
Subsistence Farming
Grasslands
Evapotranspiration
Mesosphere
46. The cloudiness of a liquid due to small suspended particles.
Turbidity
Organism
Deciduous Forest
Eutrophication
47. A partially enclosed part of the ocean with rivers or streams flowing into it.
Deciduous Forest
Ecological Niche
Estuary
Denitrification
48. The oxification of ammonia by certain bacterium into nitrite and later into nitrates - which can then be used by plants.
Indicator Species
Precipitation
Nitrification
Eukaryotes
49. 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.
Mesosphere
Consumers
Ozone
Troposphere
50. Organisms which create their own food out of inorganic (abiotic) substances.
Sahelanthropus Tchadensis
Surface Run-Off
Producers
Browsers