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