MCQOPTIONS
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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. |
Asphalt and bitumen are hold to be as heavyweight |
| A. | Chemical compounds |
| B. | Inorganic compounds |
| C. | Hydrocarbons |
| D. | organic compounds |
| Answer» D. organic compounds | |
| 2. |
Histopathological biomarkers, dealing with changes in normal structure and functioning of |
| A. | Tissues |
| B. | Organs |
| C. | Humans |
| D. | kidneys |
| Answer» B. Organs | |
| 3. |
PAHs, PCBs and PBB are extremely stable in presence of heat and |
| A. | Cold |
| B. | Acids and Bases |
| C. | Temperature |
| D. | light |
| Answer» C. Temperature | |
| 4. |
Organic compounds, methanol, acetone and ammonia, easily gets |
| A. | Mixed |
| B. | merged |
| C. | Evaporated |
| D. | Dissolved in the sea |
| Answer» D. Dissolved in the sea | |
| 5. |
Ships play an important role in spreading exotic and |
| A. | native species |
| B. | invasive species |
| C. | Animals |
| D. | Plants |
| Answer» C. Animals | |
| 6. |
Heterotrophic organisms included fungi and |
| A. | Viruses |
| B. | Bacteria |
| C. | Insects |
| D. | Rodents |
| Answer» C. Insects | |
| 7. |
Plastics adsorbs organic pollutants from water, due to its |
| A. | Oily nature |
| B. | Sticky nature |
| C. | Hydrophilic nature |
| D. | Hydrophobic character |
| Answer» E. | |
| 8. |
AHDs stands for |
| A. | Adobe hill devices |
| B. | Air hall devices |
| C. | acoustic harassment devices |
| D. | Aerosols hill devices |
| Answer» D. Aerosols hill devices | |
| 9. |
DDT is still used for controling malaria in |
| A. | taiga |
| B. | Poles |
| C. | Tropics |
| D. | Temperate |
| Answer» D. Temperate | |
| 10. |
Book population bomb was written by |
| A. | Rachel Carson |
| B. | Einstein |
| C. | Paul Ehrlich |
| D. | Donald |
| Answer» D. Donald | |
| 11. |
Approximately, 12% of pollution is due to maritime and |
| A. | Spillages |
| B. | Shipping accidents |
| C. | Pollutants from the atmosphere |
| D. | Industrial effluents |
| Answer» C. Pollutants from the atmosphere | |
| 12. |
Phosphate fertilisers, emitting |
| A. | Cadmium |
| B. | Lead |
| C. | Mercury |
| D. | Zinc |
| Answer» B. Lead | |
| 13. |
Surface plume, affecting light penetration near the |
| A. | Atmosphere |
| B. | Lands |
| C. | Ocean Surface |
| D. | Biosphere |
| Answer» D. Biosphere | |
| 14. |
Plastic sinks at bottom of ocean, covering benthic |
| A. | Fauna and flora |
| B. | Fishes |
| C. | Plants |
| D. | Tress |
| Answer» B. Fishes | |
| 15. |
In rats, oral dosage ranges from 5000 to 15000 mg/kg, regarded as |
| A. | Least Toxic |
| B. | Slightly Toxic |
| C. | Super toxic |
| D. | non-toxic |
| Answer» B. Slightly Toxic | |
| 16. |
Mid-frequency sonars has a frequency range of 1 to |
| A. | 200 kHz |
| B. | 60 kHz |
| C. | 900 kHz |
| D. | All of above |
| Answer» E. | |
| 17. |
Higher sounds are mostly due to oscillations of bubbles in the |
| A. | water |
| B. | air |
| C. | Atmosphere |
| D. | environment |
| Answer» B. air | |
| 18. |
Spilled oil undergoes a number of physicochemical |
| A. | Changes |
| B. | Processes |
| C. | Reactive formation |
| D. | Transformation |
| Answer» E. | |
| 19. |
If a sound lasts only for a short burst, known as a |
| A. | Pitch |
| B. | amplitude |
| C. | Wavelength |
| D. | pulse |
| Answer» E. | |
| 20. |
Petroleum oil is characterized as a dark colored and flammable |
| A. | Semi Solid |
| B. | Solid |
| C. | Liquid |
| D. | Gas |
| Answer» D. Gas | |
| 21. |
Cd causes endocrine disruption in |
| A. | Fishes |
| B. | Seals |
| C. | Whales |
| D. | Silver sea breams |
| Answer» E. | |
| 22. |
About 20-90 ppm cadmium is emitted from |
| A. | Burning of coal |
| B. | Fossil fuels |
| C. | Car tyres |
| D. | factories |
| Answer» D. factories | |
| 23. |
In living organisms, high cadmium leads to cancer, hypertension and |
| A. | Organ damage |
| B. | Cell membrane |
| C. | Kidney damage |
| D. | heart faliure |
| Answer» D. heart faliure | |
| 24. |
PCDFs stands for |
| A. | polychlorinated dibenzofurans |
| B. | polychlorinated dibromofurans |
| C. | polybromo dibenzofurans |
| D. | polychlorinated dibenzofloro |
| Answer» B. polychlorinated dibromofurans | |
| 25. |
Sunlight and salts, functioning as weathering the |
| A. | Sediments |
| B. | Plastic |
| C. | Plants |
| D. | Soil |
| Answer» C. Plants | |
| 26. |
Toxaphene is defined as |
| A. | Carcinogen |
| B. | Persistent |
| C. | Aromatic carbon |
| D. | Carbon precursors |
| Answer» B. Persistent | |
| 27. |
Ships loss their cargo due to human error, storm and |
| A. | Noise Pollution |
| B. | Air |
| C. | Winds |
| D. | heat waves |
| Answer» D. heat waves | |
| 28. |
Non-persistent oil is a petroleum based |
| A. | Water |
| B. | Gas |
| C. | Oil |
| D. | Solid |
| Answer» D. Solid | |
| 29. |
Median lethal dose was set up by |
| A. | Charles |
| B. | Traven |
| C. | Chris |
| D. | Darwin |
| Answer» C. Chris | |
| 30. |
Endemic species are remarkably associated with a particular |
| A. | house |
| B. | mountain |
| C. | person |
| D. | place |
| Answer» E. | |
| 31. |
Plastic bottles takes 450 years to |
| A. | recycle |
| B. | form |
| C. | rotten |
| D. | decompose |
| Answer» E. | |
| 32. |
An calculated estimaates, foamed plastic cups takes 50 years to |
| A. | rotten |
| B. | formed |
| C. | recycled |
| D. | decomposed |
| Answer» E. | |
| 33. |
Cycloalkanes are saturated hydrocarbons, having higher |
| A. | Temperature |
| B. | Humidity |
| C. | Melting pointing |
| D. | All of above |
| Answer» E. | |
| 34. |
Proteome is a set of all proteins, usually occurred in |
| A. | Plants |
| B. | Molecules |
| C. | Organs |
| D. | Cells |
| Answer» E. | |
| 35. |
Acoustic Harassment Devices (AHDs), performing function in warning marine |
| A. | Zooplanktons |
| B. | Phytoplanktons |
| C. | Fishes |
| D. | mammals |
| Answer» E. | |
| 36. |
Drins is a common name for chlorinated insecticides aldrin, dieldrin and |
| A. | halogens |
| B. | Endrin |
| C. | carbon compounds |
| D. | DDT |
| Answer» C. carbon compounds | |
| 37. |
According to a general survey, banana peel takes 3 to 4 weeks to be |
| A. | eaten |
| B. | rotten |
| C. | decomposed |
| D. | formed |
| Answer» D. formed | |
| 38. |
Polyhalogenated biphenyls are lipophilic and resistant to |
| A. | Aerosol |
| B. | Sediments |
| C. | Biodegradation |
| D. | Pollutants |
| Answer» D. Pollutants | |
| 39. |
In European union, almost, 30.3% of plastic is combusted for |
| A. | energy removal |
| B. | energy reclamation |
| C. | Food production |
| D. | energy combustion |
| Answer» C. Food production | |
| 40. |
Aluminum cans take 500 years to |
| A. | form |
| B. | grow |
| C. | decompose |
| D. | rotten |
| Answer» D. rotten | |
| 41. |
Exotics are species that find themselves outside of their |
| A. | natural habitat |
| B. | artificial habitat |
| C. | habitat |
| D. | shell |
| Answer» B. artificial habitat | |
| 42. |
Primary sources of pathogens are sewage and |
| A. | Deforestation |
| B. | mining |
| C. | Livestock |
| D. | Acid Rain |
| Answer» D. Acid Rain | |
| 43. |
PAH binding strongly to organic matter, found in sediments of |
| A. | Terrestrial environment |
| B. | Aquatic environment |
| C. | Chemical compounds |
| D. | inorganic compounds |
| Answer» C. Chemical compounds | |
| 44. |
Emic species, included Orange-breasted Sunbird and |
| A. | Zooplanktons |
| B. | Planktons |
| C. | Anthobaphes violacea |
| D. | Phytoplankton |
| Answer» D. Phytoplankton | |
| 45. |
In sea, lighter components of oil, will |
| A. | Float |
| B. | develop into a thick layer |
| C. | Evaporate |
| D. | dissolve |
| Answer» E. | |
| 46. |
Heavy metals, counted as mercury, lead, cadmium, chromium and |
| A. | Carbon |
| B. | Arsenic |
| C. | Oxygen |
| D. | helium |
| Answer» C. Oxygen | |
| 47. |
Calcareous fouling organisms, examplified as barnacles, bryozoans and |
| A. | Tube worms |
| B. | Insects |
| C. | Wild Animals |
| D. | Plants |
| Answer» B. Insects | |
| 48. |
Acid rain has a substantial effects on |
| A. | Oceans |
| B. | Lakes |
| C. | Ponds |
| D. | animals |
| Answer» B. Lakes | |
| 49. |
In water, seismic eruptions raises noise up to |
| A. | 10 dB. |
| B. | 40 dB. |
| C. | 400 dB. |
| D. | 90 dB. |
| Answer» C. 400 dB. | |
| 50. |
Primary sources of persistent toxins, involved in industrial discharges, waste water discharge and |
| A. | Agricultural run off |
| B. | Soils |
| C. | Sediments |
| D. | Chemicals |
| Answer» B. Soils | |