MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
When mercury is being heated, it has become colorless and |
| A. | Odorless |
| B. | Vaporized |
| C. | Colored |
| D. | acidic |
| Answer» B. Vaporized | |
| 2. |
Digging up parts of sea floor, causes disturbance in the |
| A. | Benthic Ecosystem |
| B. | Biomes |
| C. | Forests |
| D. | land |
| Answer» B. Biomes | |
| 3. |
TLV-TWA stands for |
| A. | Thresold Limit value-time weighted Average |
| B. | Thresold Level value-time weighted Average |
| C. | Thresold Limit value-temperature weighted Average |
| D. | Thresold Limit value-time weighted Adverse |
| Answer» B. Thresold Level value-time weighted Average | |
| 4. |
Booms consist of plastic |
| A. | Bottles |
| B. | Furnace |
| C. | Box |
| D. | All of above |
| Answer» E. | |
| 5. |
Active sonar is involved in emitting pulses of sounds, as well as lightening for |
| A. | Vessels |
| B. | pitch |
| C. | echoes |
| D. | wind |
| Answer» D. wind | |
| 6. |
Burning of oil, releases nitrogen and |
| A. | Aerosol |
| B. | Air pollution |
| C. | Sulfur |
| D. | All of above |
| Answer» D. All of above | |
| 7. |
How much shipping containers got lost accidently at sea? |
| A. | 7000 |
| B. | 5000 |
| C. | 2000 |
| D. | 10000 |
| Answer» E. | |
| 8. |
Weathered oil easily sticks to skin, fur or feathers of |
| A. | Marine animals |
| B. | birds |
| C. | Insects |
| D. | Wild Animals |
| Answer» B. birds | |
| 9. |
In 2006, almost, 19.7% of all plastic waste in European Union was |
| A. | recycled |
| B. | reused |
| C. | reduced |
| D. | manufactured |
| Answer» B. reused | |
| 10. |
Apple core approximately, takes 2 months to be |
| A. | rotten |
| B. | decomposed |
| C. | Formed |
| D. | grown |
| Answer» C. Formed | |
| 11. |
Impacts of invasive marine species are usually |
| A. | Harmful |
| B. | Toxic |
| C. | reversible |
| D. | irreversible |
| Answer» E. | |
| 12. |
Cadmium is a chemical element, material is used in |
| A. | Rubber Materials |
| B. | Plastic materials |
| C. | Leather |
| D. | All of above |
| Answer» E. | |
| 13. |
CRNA oligonucleotide microarray is an example of |
| A. | Venting |
| B. | Array |
| C. | Bioventing |
| D. | Biodegradable |
| Answer» C. Bioventing | |
| 14. |
Mid frequency sonars are participated in submarine detection and |
| A. | weapon activation |
| B. | biomass detection |
| C. | measurement of soil |
| D. | fire detection |
| Answer» B. biomass detection | |
| 15. |
ballast water contains a number of |
| A. | Animals |
| B. | Planktons |
| C. | Microscopic organisms |
| D. | sea creature |
| Answer» D. sea creature | |
| 16. |
What causes oil to become sticky? |
| A. | Physical weathering |
| B. | Eutrophication |
| C. | crude bitumen |
| D. | sludging |
| Answer» E. | |
| 17. |
Lead is used in building construction, lead-acid batteries, and |
| A. | Bullets |
| B. | Leather products |
| C. | Textile garments |
| D. | All of above |
| Answer» B. Leather products | |
| 18. |
Small particles have been found suspended in |
| A. | Atmosphere |
| B. | Air |
| C. | sea water |
| D. | lakes |
| Answer» D. lakes | |
| 19. |
Ammonia can be produced from degradation of dead remainders of organisms, by |
| A. | Bacteria |
| B. | Viruses |
| C. | Rodents |
| D. | Insects |
| Answer» B. Viruses | |
| 20. |
PAHs are highly |
| A. | Alklene |
| B. | Alkane |
| C. | Alkline |
| D. | alkylated |
| Answer» E. | |
| 21. |
Mercury is in a liquid form at |
| A. | Normal temperature |
| B. | Extreme humidity |
| C. | Pressure |
| D. | Room temperature |
| Answer» E. | |
| 22. |
Dioxins are found in natural clays, as well as in |
| A. | Heat remains |
| B. | factories remains |
| C. | Industries remains |
| D. | All of above |
| Answer» E. | |
| 23. |
Surface plume threatens primary production of phytoplanktons and changes the |
| A. | Concentration of water |
| B. | Turbidity of water |
| C. | Changes temperature of water |
| D. | Chemical composition of water |
| Answer» E. | |
| 24. |
In Ionic speciation, different combination of ions can become prevalent, if showing up environmental |
| A. | Nutrient Changes |
| B. | Temperature changes |
| C. | conditions changes |
| D. | Pressure changes |
| Answer» D. Pressure changes | |
| 25. |
Pitch is defined as functioning of wavelength of the |
| A. | Air |
| B. | water |
| C. | vibration |
| D. | wind |
| Answer» D. wind | |
| 26. |
Nitrobacteria converts nitrites into nitrates, such a process is known as |
| A. | Nitrogen gas |
| B. | Nitrogen fixation |
| C. | Ammonification |
| D. | Nitrification |
| Answer» E. | |
| 27. |
Atmospheric metal pollution, accountable for input of Cd, Cu, Fe, Zn, Ni and As into the |
| A. | Lands |
| B. | Hills |
| C. | Mountains |
| D. | Oceans |
| Answer» E. | |
| 28. |
Largest form of an aquatic pollution is defined as |
| A. | Industrial Pollution |
| B. | Run off |
| C. | Oil Spillage |
| D. | Atmosphere |
| Answer» D. Atmosphere | |
| 29. |
Deposits of sulfides and precious metals, usually found near the |
| A. | Hydrothermal vents |
| B. | Sea |
| C. | Coastal Areas |
| D. | Hilly Areas |
| Answer» B. Sea | |
| 30. |
Cycloalkanes are isomeric, having one or more |
| A. | Carbon ring |
| B. | Hydrogen ring |
| C. | Phosphate ring |
| D. | Oxygen ring |
| Answer» B. Hydrogen ring | |
| 31. |
Histopathological biomarkers are easily |
| A. | accumulated |
| B. | found |
| C. | Determined |
| D. | Formed |
| Answer» D. Formed | |
| 32. |
Precious metals, included silver, Manganese, copper, gold and |
| A. | CO₂ |
| B. | Oxygen and carbon |
| C. | Zinc |
| D. | platinum |
| Answer» D. platinum | |
| 33. |
Utilization of boats can cause skimming oil from the |
| A. | water Surface |
| B. | Deep ocean |
| C. | Land |
| D. | Atmosphere |
| Answer» B. Deep ocean | |
| 34. |
Who is known as father of modern toxicology? |
| A. | Paracelsus |
| B. | Charles |
| C. | Love lock |
| D. | Chris |
| Answer» B. Charles | |
| 35. |
According to a general survey, disposable diapers almost takes 550 years to |
| A. | decompose |
| B. | regenerate |
| C. | burn |
| D. | recycle |
| Answer» B. regenerate | |
| 36. |
Sound assembled if something vibrates, consists of traveling longitudinal |
| A. | vibrations |
| B. | wind |
| C. | air |
| D. | velocity |
| Answer» B. wind | |
| 37. |
Deposition of metals can occur through dry and |
| A. | Wind circulations |
| B. | Winds |
| C. | Acid rain |
| D. | Wet deposition |
| Answer» E. | |
| 38. |
Reaction of oil components with oxygen in presence of sunlight is called |
| A. | evaporation |
| B. | Chemical reactions |
| C. | Reduction |
| D. | photo-oxidation |
| Answer» E. | |
| 39. |
Rising level of nitrogen and phosphorous in water, causing |
| A. | Acidification |
| B. | Algal bloom |
| C. | Climate change |
| D. | distortion |
| Answer» C. Climate change | |
| 40. |
Cycloalkanes are saturated |
| A. | Aromatic hydrocarbons |
| B. | Hydrocarbons |
| C. | Non Toxic |
| D. | Toxic |
| Answer» C. Non Toxic | |
| 41. |
"SONAR" stands for |
| A. | Salt Navigation and Ranging |
| B. | Sound Navigation and Rails |
| C. | Sound Naval and Ranging |
| D. | All of above |
| Answer» E. | |
| 42. |
Ammonia, ethylacrylate and hexanol, considered to be as easily |
| A. | Evaporated |
| B. | merged |
| C. | Mixed |
| D. | Dissolved |
| Answer» E. | |
| 43. |
Some part of oil disperse in the |
| A. | Wind |
| B. | Air |
| C. | Water |
| D. | Atmosphere |
| Answer» D. Atmosphere | |
| 44. |
Aldrin is closely interconnected to |
| A. | Drin |
| B. | Toxaphene |
| C. | Dieldrin |
| D. | heptachlor |
| Answer» D. heptachlor | |
| 45. |
Plants adapted in low pH soil and |
| A. | High oxygen content |
| B. | Low oxygen content |
| C. | High temperature |
| D. | high pressure |
| Answer» C. High temperature | |
| 46. |
According to an estimates, paper bags takes one month to be |
| A. | produced |
| B. | recycled |
| C. | rotten |
| D. | decomposed |
| Answer» E. | |
| 47. |
More oil is dispersed in water, faster microorganisms starts its |
| A. | Biodegradation |
| B. | Eutrophication |
| C. | Photosynthesis |
| D. | chemical reaction |
| Answer» B. Eutrophication | |
| 48. |
Median lethal dose shows variation with solvent and |
| A. | Dissolved |
| B. | Mixed |
| C. | Formed |
| D. | Produced |
| Answer» B. Mixed | |
| 49. |
High-frequency sonar has a frequency up to |
| A. | 200kHz |
| B. | 100kHz |
| C. | 900kHz |
| D. | 1000kHz |
| Answer» C. 900kHz | |
| 50. |
Inorganic pollutants present in atmosphere included NO, NO₂ and |
| A. | Air |
| B. | Water |
| C. | SO₂ |
| D. | Soil |
| Answer» D. Soil | |