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