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