SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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 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
Sublimation
Air Pollution
Temperature Inversion
Grazers
2. The rate at which producers create organic material.
Evaporation
Temperate Rain Forest
Gross Primary Product
Infiltration
3. The UN's first major conference on environmental issues.
Homo Sapiens
Montreal Protocol
Non-government Organizations
Stockholm Conference
4. A community of species interacting with their nonliving (abiotic) environment.
Polyculture
Keystone Species
Ecosystem
Stockholm Conference
5. 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
Antarctica
Deserts
Intensive Subsistence Farming
6. Areas with only enough rainfall for grasses to grow. As a result - most animals are grazers - such as buffalo.
Carbon Dioxide
Assimilation
World Trade Organization
Grasslands
7. A UN conference that addressed the growing population problem.
UN Conference on Population and Development
Subsurface flow
Troposphere
Neanderthals
8. The second atmospheric layer. The ozone layer is found here - increasing the temperature with altitude.
Lithosphere
Hetrotrophs
Denitrification
Stratosphere
9. The spraying of pesticides to keep produce from any injuries or damage.
Cosmetic Spraying
Assimilation
Temperate Rain Forest
Coevolution
10. A type of farming where the farmer will grow just enough crops to satisfy his family's needs for the next year.
Ammonification
Stratosphere
Subsistence Farming
Subsurface flow
11. The process of planting trees in between other crops.
Wilderness Act
Alley Cropping
Sublimation
Superfund Law
12. 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.
Parasitism
Acid Rain
Speciation
Homo Erectus
13. 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
UN Conference on Population and Development
Grasslands
14. The area between the troposphere and the stratosphere. Here the temperature reverses from decreasing to increasing with altitude.
Savannah
Mesosphere
Environmental Protection Agency
Tropopause
15. A variety of species living together.
Subsistence Farming
Deciduous Forest
Mutualism
Community
16. 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.
Temperature Inversion
Competitive Exclusion
Coniferous Forest
Condensation
17. A type of symbiosis where each species will benefit from interacting with the other.
Mutualism
Acid Rain
Commensalism
Toxic Substances Control Act
18. Excess water which cannot be infiltrated into the soil and instead flows along the ground.
Surface Run-Off
Antarctica
Mesosphere
Subsistence Farming
19. Surface run-off caused by melted snow.
Hydrologic Cycle
Vienna Convention for the Protection of the Ozone Layer
Hydrosphere
Snowmelt
20. A greenhouse gas which also plays a key role in regulating ozone levels.
Tropical Rain Forest
Intensive Subsistence Farming
Nitrous Oxide
Environmental Ethics
21. 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
Omnivores
Eukaryotes
Tropical Rain Forest
22. The amount of pests needed before spraying pesticides is economical.
Trophic Level
Evapotranspiration
UN Conference on Population and Development
Economic Threshold
23. An international convention which created the framework for protecting the ozone layer.
Biosphere
Infiltration
Carnivores
Vienna Convention for the Protection of the Ozone Layer
24. Growing more than one crop at a time.
K-Selected Populations
Polyculture
Snowmelt
Gross Primary Product
25. An extinct hominid species believed to have long - ape-like arms; have a brain capacity half that of modern men; and use primitive tools.
Copiotrophs
Homo Habilis
Evaporation
Interception
26. Plants taking in nitrates from the soil.
Organism
Intensive Subsistence Farming
Assimilation
Commensalism
27. An act which set standards for the amount of pollution in water.
Cosmetic Spraying
Shifting Agriculture
World Trade Organization
Water Pollution Control Act
28. Organisms which eat other organisms.
Silent Spring
Consumers
Evaporation
Indicator Species
29. Water found in estuaries. This water is a mixture of saltine ocean water and fresh water - usually from a river or stream.
Species
Infiltration
Browsers
Brackish Water
30. 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.
Lithosphere
Air Pollution
World Trade Organization
Tropical Rain Forest
31. Species which react quickly to an environmental change and therefore can be used to diagnose a particular ecosystem.
Taiga
Tropical Rain Forest
Vienna Convention for the Protection of the Ozone Layer
Indicator Species
32. All members of a species which live in the same area.
Evaporation
Stratosphere
Detrivores
Population
33. The place of an organism in an ecosystem - such as what it eats and how it interacts with other organisms.
Total Fertility Rate
Shifting Agriculture
Savannah
Ecological Niche
34. A partially enclosed part of the ocean with rivers or streams flowing into it.
Carnivores
Competitive Exclusion
Nitrification
Estuary
35. The study of the interaction between organisms and their environment.
Parasitism
Copiotrophs
Antarctica
Ecology
36. An agency created to establish regulations concerning pollutants to protect humans and the environment.
Environmental Protection Agency
Lithosphere
Chaparral
Stockholm Conference
37. Animals which eat grass and roots.
Advection
UN Conference on Population and Development
Grazers
Environmental Ethics
38. An influential book by Rachel Carson which helped begin the environmental movement.
Silent Spring
Autotrophs
Environmental Ethics
Prokaryotes
39. An act requiring federal agencies to detail the impact of proposed environmental policies.
Biosphere
Brackish Water
Community
National Environmental Policy Act
40. An act which required the EPA to set standards for drinking water.
R-Selected Populations
Savannah
Safe Drinking Water Act
Biomes
41. The process of surface water entering the soil. This ensures that plants have adequate access to water.
Species
Vienna Convention for the Protection of the Ozone Layer
Infiltration
Consumers
42. 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.
Deserts
Ozone
Temperature Inversion
Copiotrophs
43. All of the water found on earth.
Non-government Organizations
Vienna Convention for the Protection of the Ozone Layer
Biogeochemical Cycle
Hydrosphere
44. The process of a gas transforming into a liquid.
Condensation
Population
Social Ecology
Toxic Substances Control Act
45. Organisms with a nucleus.
Homo Habilis
Condensation
Parasitism
Eukaryotes
46. An extinct hominid species believed to exhibit the first example of full-time bipedalism.
Australopithecus Afarensis
Browsers
Biogeochemical Cycle
Thermosphere
47. The uppermost atmospheric layer. Here satellites orbit the earth.
Symbiosis
Non-government Organizations
Exosphere
Resource Partitioning
48. The middle atmospheric layer. Meteors burn up after entering this layer.
Montreal Protocol
Mesosphere
Oligotrophs
Harmful Algal Bloom
49. The spraying of pesticides to prevent a pest problem before it happens.
Ecological Niche
Taiga
Insurance Spraying
Shifting Agriculture
50. The conversion of nitrates into nitrogen gas.
Social Ecology
Organism
Stratosphere
Denitrification