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DSST Environmental Science
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Subjects
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dsst
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science
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
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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. Refers to the combined physical and biological components of an environment.
Ecosystems
Nonpoint source pollution
Decrease in death and birth rates
Cultural Eutrophication
2. 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.
Mass transit
Birth rate
Future impacts of global warming
Cultural Eutrophication
3. The person who started the phrase: 'greenhouse effect' If this person isn't an option choose Pouillet
Fourier
Secondary succession
Clean air act
Secondary treatment
4. 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.
Recycle
Clean air act
Aerobic
Global warming
5. 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.
Future impacts of global warming
Screening
Antarctica's Ice Cap
Taiga
6. Begins in areas where the soil is already present
Carbon dioxide
Biomes
Secondary succession
Tertiary treatment
7. 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
Natural eutrophication
Anaerobic
Antarctica's Ice Cap
Decrease in death and birth rates
8. A species that eats both plants and animals as their primary food source. ex- pigs
Omnivore
Future impacts of global warming
Carbon monoxide
Greenhouse effect
9. 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.
Pretreatment
Secondary treatment
Carnivores
Tertiary treatment
10. 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.
Ecology
Screening
Secondary standards
Primary succession
11. Which region of the U.S. is most affected by acid rain?
Northeast
Double HDEP liners
Contour farming
Pretreatment
12. 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
Sludge
Global warming
Nonpoint source pollution
Contour farming
13. 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
Secondary standards
Carbon monoxide
Chernobyl disaster
Detrivores
14. Depending on free oxygen or air
Biomes
Taiga
Aerobic
Greenhouse effect
15. 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
Global warming
Herbivores
Western Asia
Contour farming
16. Wastewater treatment. Screening and grit removal
Aerobic
Pretreatment
Clean air act
Ecosystems
17. 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
Tertiary treatment
Primary standards
Greenhouse effect
Pretreatment
18. Obtain nutrients by eating dead and rotten things. Ex- earthworms
Western Asia
Detrivores
8.37%
Clean air act
19. Requires the EPA to set national ambient air quality standards for pollutants considered harmful to public health and the environment.
USA
Taiga
Clean air act
Contour farming
20. 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
Herbivores
Secondary standards
Antarctica's Ice Cap
Subsidence sinkholes
21. A natural process that occurs in an aging lake or pond as that body of water gradually builds up its concentration of plant nutrients
Carnivores
Global warming
Double HDEP liners
Natural eutrophication
22. Animals that are adapted to eat plants
Birth rate
Chernobyl disaster
Double HDEP liners
Herbivores
23. 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
Carbon monoxide
Tertiary treatment
Poverty
Aerobic
24. The main cause and effects of infant mortality in developing nations
Poverty
Natural eutrophication
Sludge
Clean air act
25. Which global region's population is increasing more than the others? (if not there - pick Africa)
Secondary treatment
Ecology
Western Asia
Nonpoint source pollution
26. Animals that eat mainly or only meat
Carnivores
Secondary treatment
Primary succession
Ecology
27. Death rate
Global warming
Omnivore
8.37%
Antarctica's Ice Cap
28. Feature found in 'state of the art' landfills
Carbon dioxide
Double HDEP liners
Temperature and precipitation
Taiga
29. Living or active in the absence of free oxygen
Anaerobic
Antarctica's Ice Cap
Mass transit
Greenhouse effect
30. Set limits to protect public health - including the health of 'sensitive' populations such as asthmatics - children - and the elderly
Biomes
Temperature and precipitation
Primary standards
1.14%
31. 19% - 20% increasing when compared to death rate
Birth rate
Chernobyl disaster
Anaerobic
USA
32. The ocean water pollutant that is the most damaging
Oil (petroleum)
Mass transit
Tertiary treatment
Taiga
33. Current world population growth
Birth rate
Antarctica's Ice Cap
Subsidence sinkholes
1.14%
34. A federal agency charged with protecting human health and the environment by writing and enforcing regulations based on laws passed by congress
Phosphorous
EPA
Double HDEP liners
Primary treatment
35. 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
Carnivores
Herbivores
Carbon monoxide
36. The scientific study of the distributions - abundance - share affects - and relations of organisms and their interactions with each other in a common environment.
Omnivore
Sludge
Biomes
Ecology
37. 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
1.14%
Oil (petroleum)
Carnivores
Primary treatment
38. 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
Screening
USA
Strip farming
Contour farming
39. A vehicle that transports more than a few people. Ex- busses - trains - subways - etc. NOT your van/car
Fourier
Anaerobic
Mass transit
Future impacts of global warming
40. Two main factors that influence a region's climate
Cultural Eutrophication
Temperature and precipitation
Fourier
Mass transit
41. Is dealt with the secondary treatment phase when it becomes activated -----. It is then treated for disposal using anaerobic - aerobic or other means.
Sludge
Primary standards
Antarctica's Ice Cap
Chernobyl disaster
42. Begins in areas where no soil is initially present
Primary succession
Aerobic
Recycle
Primary treatment
43. What country is the biggest producer of Hazardous waste?
Nonpoint source pollution
Clean air act
USA
Phosphorous
44. 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
Carbon dioxide
Clean air act
Primary treatment
Omnivore
45. The effect industrialization initially has on birth and death rates
Decrease in death and birth rates
Secondary treatment
Western Asia
Birth rate
46. Set limits to protect public welfare - including protection against decreased visibility - damage to animals - crops - vegetation - and buildings
Secondary standards
Northeast
Phosphorous
Cultural Eutrophication
47. 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
Birth rate
Antarctica's Ice Cap
Ecosystems
Phosphorous
48. 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.
Decrease in death and birth rates
Cultural Eutrophication
Sludge
Pretreatment
49. The primary suggested method of disposing municipal solid waste as per EPA guidelines after preventing waste in the first place.
8.37%
Recycle
Nonpoint source pollution
Screening
50. 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.
Primary standards
Secondary standards
Biomes
Clean air act
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