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