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Test your basic knowledge |
DSST Environmental Science
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. Refers to the combined physical and biological components of an environment.
Phosphorous
Ecosystems
Clean air act
Recycle
2. Which region of the U.S. is most affected by acid rain?
Biomes
Double HDEP liners
Northeast
Subsidence sinkholes
3. Obtain nutrients by eating dead and rotten things. Ex- earthworms
Future impacts of global warming
Detrivores
Pretreatment
Contour farming
4. Depending on free oxygen or air
Aerobic
Phosphorous
Natural eutrophication
Contour farming
5. Set limits to protect public welfare - including protection against decreased visibility - damage to animals - crops - vegetation - and buildings
Contour farming
Secondary standards
Carnivores
Anaerobic
6. A vehicle that transports more than a few people. Ex- busses - trains - subways - etc. NOT your van/car
Mass transit
Screening
Future impacts of global warming
Greenhouse effect
7. Death rate
8.37%
Nonpoint source pollution
Contour farming
Taiga
8. The scientific study of the distributions - abundance - share affects - and relations of organisms and their interactions with each other in a common environment.
Double HDEP liners
Carnivores
Anaerobic
Ecology
9. Also known as the boreal forest - is a biome characterized by coniferous forests. Long and cold winters are the dominant feature of the ----- biome. The temperature in a ----- biome can range from -76 to 104 degrees.
Taiga
Primary standards
Recycle
Carnivores
10. Form gradually where the overburden is thin. The dissolving limestone is replaced by sand granules the t fall into the depression and fill the holes. They appear as a concave depression in the ground. ------ ------ are usually only a few feet in diam
Poverty
Screening
Subsidence sinkholes
Omnivore
11. A species that eats both plants and animals as their primary food source. ex- pigs
Omnivore
Greenhouse effect
Decrease in death and birth rates
Primary treatment
12. The practice of plowing across a slope following its elevation contour lines. The rows formed slows water run-off during rainstorms to prevent soil erosion and allows the water time to settle into the soil. In -------- plowing - the ruts made by the
Recycle
EPA
Primary succession
Contour farming
13. Sometimes defined as anything more than primary and secondary treatment. Treated water is sometimes disinfected chemically or physically (for example by lagoons and microfiltration) prior to discharge into a water source.
Chernobyl disaster
Carbon dioxide
Carbon monoxide
Tertiary treatment
14. A part of the pre-treatment phase of wastewater treatment. ----- is when influent sewage water is strained to remove all large objects carried in the sewage system.
Screening
Biomes
Natural eutrophication
Clean air act
15. A colorless - odorless - non-flammable gas and is the most prominent greenhouse gas in Earth's atmosphere. It is recycled through the atmosphere by the process of photosynthesis - which makes human life possible. Is one of the greenhouse gasses. The
Screening
EPA
Carbon dioxide
Secondary standards
16. Consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil - grease and lighter solids float to the surface. The settled and floating materials are removed and the remaining liquid may be dis
Birth rate
Recycle
Primary treatment
Anaerobic
17. Which global region's population is increasing more than the others? (if not there - pick Africa)
Temperature and precipitation
Pretreatment
Contour farming
Western Asia
18. Often regarded as the main culprit in cases of eutrophication in lakes subjected to point source pollution from sewage. The concentration of algae and the trophic state of lakes correspond well to phosphorous levels in water. Humankind has increased
Taiga
Primary succession
Phosphorous
Oil (petroleum)
19. Water pollution affecting a water body from different sources - such as polluted runoff from agricultural areas draining into a ricer - or wind-borne debris blowing out to sea. NPS may derive from many different sources with no specific solution to r
Biomes
Nonpoint source pollution
Anaerobic
Carnivores
20. Begins in areas where no soil is initially present
Pretreatment
Secondary standards
Primary succession
Double HDEP liners
21. Are climatically and geographically defined as similar climatic conditions on the earth - such as communities of plants - animals - and soil organisms and are often referred to as ecosystems.
Biomes
Phosphorous
Birth rate
Contour farming
22. Is dealt with the secondary treatment phase when it becomes activated -----. It is then treated for disposal using anaerobic - aerobic or other means.
Secondary treatment
Sludge
Omnivore
Oil (petroleum)
23. The person who started the phrase: 'greenhouse effect' If this person isn't an option choose Pouillet
Cultural Eutrophication
Fourier
Global warming
Primary standards
24. A recent warming of the Earth's surface and lower atmosphere - it is believed to be the result of a strengthening of the greenhouse effect mostly due to human produced increases in atmospheric greenhouse gasses.
Ecosystems
Sludge
Primary treatment
Global warming
25. The effect industrialization initially has on birth and death rates
Decrease in death and birth rates
Secondary treatment
USA
Temperature and precipitation
26. The ocean water pollutant that is the most damaging
Clean air act
Primary standards
Ecology
Oil (petroleum)
27. Requires the EPA to set national ambient air quality standards for pollutants considered harmful to public health and the environment.
Clean air act
Decrease in death and birth rates
Natural eutrophication
Western Asia
28. Wastewater treatment. Screening and grit removal
Northeast
Biomes
Pretreatment
Chernobyl disaster
29. Feature found in 'state of the art' landfills
8.37%
Clean air act
Secondary succession
Double HDEP liners
30. Could be melting of the polar ice caps - destruction of coral reefs - severe winters and summers - excessive rain fall in some areas and not enough in others - drought - etc.
Carbon dioxide
Temperature and precipitation
Future impacts of global warming
Primary succession
31. A very week direct greenhouse gas but has important indirect effects on global warming. Reacts with hydroxyl (OH) radicals in the atmosphere - reducing their abundance. As OH radicals help to reuse the lifetimes of strong greenhouse gasses - like met
Mass transit
Anaerobic
Tertiary treatment
Carbon monoxide
32. Animals that are adapted to eat plants
Clean air act
Birth rate
Secondary treatment
Herbivores
33. As the CO2 gasses continue to rise it is causing a mass heating effect which is melting ------- ----- ----. At the current rate of global warming the entire --- --- will be melted in the next few decades
34. A natural process that occurs in an aging lake or pond as that body of water gradually builds up its concentration of plant nutrients
Natural eutrophication
Fourier
Secondary treatment
Taiga
35. Two main factors that influence a region's climate
Future impacts of global warming
EPA
Temperature and precipitation
Double HDEP liners
36. Occurs when human activity introduces increased amounts of plant nutrients - which speed up plant growth and eventually choke the lake of all its animal life.
Cultural Eutrophication
Secondary standards
Chernobyl disaster
Carnivores
37. A federal agency charged with protecting human health and the environment by writing and enforcing regulations based on laws passed by congress
Ecology
Mass transit
Secondary standards
EPA
38. What country is the biggest producer of Hazardous waste?
USA
Omnivore
Future impacts of global warming
Sludge
39. Begins in areas where the soil is already present
Secondary succession
Oil (petroleum)
Ecosystems
Contour farming
40. Set limits to protect public health - including the health of 'sensitive' populations such as asthmatics - children - and the elderly
Primary standards
Oil (petroleum)
Northeast
8.37%
41. A nuclear accident that occurred on April 26 - 1986 at the Chernobyl Nuclear Power Plant in Ukraine (then the Ukrainian Soviet Socialist Republic - part of the Soviet Union). It is considered the worst nuclear power plant accident in history and is t
Birth rate
Omnivore
Chernobyl disaster
Temperature and precipitation
42. Animals that eat mainly or only meat
Omnivore
Carnivores
Pretreatment
Carbon dioxide
43. A method of farming used when a slope is too steep or too long - or when the other types of farming may not prevent soil erosion. ------ farming alternates strips of closely sown crops such as hay - wheat - or other small grains with strips of row cr
Western Asia
Strip farming
Ecosystems
Anaerobic
44. Removes dissolved and suspended biological matter. Typically performed by indigenous - water-borne micro-organisms in a managed habitat. May require a separation process to remove the micro-organisms from the treated water prior to discharge or terti
Secondary treatment
Pretreatment
Primary treatment
Birth rate
45. A process by which radioactive energy leaving a planetary surface is absorbed by some atmospheric gasses called greenhouse gasses. They transfer this energy to other components of the atmosphere and it is re-radiated in all directions - including bac
Ecosystems
Greenhouse effect
Primary succession
Chernobyl disaster
46. Current world population growth
1.14%
Temperature and precipitation
Tertiary treatment
EPA
47. Living or active in the absence of free oxygen
8.37%
Anaerobic
Greenhouse effect
Western Asia
48. 19% - 20% increasing when compared to death rate
Antarctica's Ice Cap
Birth rate
Cultural Eutrophication
EPA
49. The main cause and effects of infant mortality in developing nations
Poverty
Subsidence sinkholes
Anaerobic
Chernobyl disaster
50. The primary suggested method of disposing municipal solid waste as per EPA guidelines after preventing waste in the first place.
Recycle
Phosphorous
Anaerobic
Screening