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