MCQOPTIONS
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MCQOPTIONS
This section includes 500 Mcqs, each offering curated multiple-choice questions to sharpen your Environment Management knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The natural process of emulsification of oil in water can be accelerated through the use of chemical dispersants. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Internalisation of a pollutant into an organism is called |
| A. | Bioventing |
| B. | Bioconcentrataion step |
| C. | Bioavailability |
| D. | Biodiversity |
| Answer» C. Bioavailability | |
| 3. |
Xenobiotic products are polyaromatic hydrocarbons and |
| A. | Hormones |
| B. | Polyhalogenated biphenyls |
| C. | Enzymes |
| D. | adducts |
| Answer» C. Enzymes | |
| 4. |
Mercury is used in calomel electrodes, mirror telescopes and |
| A. | Frigh |
| B. | Microwaves |
| C. | Toaster |
| D. | fluorescent lamps |
| Answer» E. | |
| 5. |
In ammonification, ammonia is produced from |
| A. | Living organisms |
| B. | Dead organisms |
| C. | Soils |
| D. | Minerals |
| Answer» C. Soils | |
| 6. |
An average composition of mineral oils in naphthene, approximately |
| A. | 0.45 |
| B. | 0.2 |
| C. | 0.49 |
| D. | 0.5 |
| Answer» D. 0.5 | |
| 7. |
In cancer, daughter cells started dividing and growing uncontrollably, forming |
| A. | Malignant tumors |
| B. | Cancer cells |
| C. | Multiple cells |
| D. | somatic cell |
| Answer» B. Cancer cells | |
| 8. |
Cracking in ice, produces sound pulses, approximately |
| A. | 0dB |
| B. | 300dB |
| C. | 30dB |
| D. | 20dB |
| Answer» D. 20dB | |
| 9. |
In rats, estimated evaluation, regarding oral dosage up to 1mg/kg, considered as |
| A. | Extremely Toxic |
| B. | Very Toxic |
| C. | Super toxic |
| D. | acidic |
| Answer» B. Very Toxic | |
| 10. |
Benthic fauna embodied with corals and |
| A. | Grass |
| B. | Fishes |
| C. | Zooplanktons |
| D. | Sea anemones |
| Answer» E. | |
| 11. |
Plastic bags, approximately, takes 200 to 1000 years to be. |
| A. | formed |
| B. | rotten |
| C. | decomposed |
| D. | recycled |
| Answer» D. recycled | |
| 12. |
In 2004, seawater samples, containing 6 times more plastic than |
| A. | fishes |
| B. | salts |
| C. | planktons |
| D. | Water in river |
| Answer» D. Water in river | |
| 13. |
For rats, oral dosage from to 500 to 5000 mg/kg, considered as |
| A. | Highly Toxic |
| B. | Super Toxic |
| C. | Moderately Toxic |
| D. | All of above |
| Answer» E. | |
| 14. |
During combustion, originated PAHs are called |
| A. | pyrogenic PAHs |
| B. | Aromatic carbons |
| C. | Hydrocarbons |
| D. | organic compounds |
| Answer» B. Aromatic carbons | |
| 15. |
Iron functioning as a Cofactor in vitamin C |
| A. | Formation |
| B. | Removal |
| C. | Uptake |
| D. | decomposition |
| Answer» D. decomposition | |
| 16. |
Physical diffusion processes of oil in sea is accelerated by |
| A. | Temperature |
| B. | wind and waves |
| C. | Pressure |
| D. | Humidity |
| Answer» C. Pressure | |
| 17. |
Metals can enter in atmospheric solution, through |
| A. | Water Drops |
| B. | Air |
| C. | Aerosol Drops |
| D. | Wind |
| Answer» D. Wind | |
| 18. |
A plastic bag resembles a nutritious jellyfish, after being visualized by |
| A. | Human |
| B. | Animals |
| C. | sea turtle |
| D. | Lions |
| Answer» D. Lions | |
| 19. |
Nitrogen gas is reduced to ammonia by |
| A. | Plants |
| B. | Rodents |
| C. | Viruses |
| D. | All of above |
| Answer» E. | |
| 20. |
Optimal temperature of dioxin formation, ranges between |
| A. | 400 and 9000 °C |
| B. | 400 and 700 °C |
| C. | 100 and 700 °C |
| D. | 400 and 600 °C |
| Answer» C. 100 and 700 °C | |
| 21. |
How much plastic is being produced almost every year worldwide? |
| A. | 265 million ton |
| B. | 200 million ton |
| C. | 300 million ton |
| D. | 365 million ton |
| Answer» B. 200 million ton | |
| 22. |
Cadmium, usually occurs, along with |
| A. | Lead ores |
| B. | Mercury ores |
| C. | Zinc sulphide ores |
| D. | Minerals |
| Answer» D. Minerals | |
| 23. |
Oceans absorb, almost, every day 30 million tones of |
| A. | Carbon dioxide |
| B. | Carbon |
| C. | Water |
| D. | oxygen |
| Answer» B. Carbon | |
| 24. |
Underground tests in United States started in |
| A. | 2000 |
| B. | 1992 |
| C. | 1998 |
| D. | 1991 |
| Answer» C. 1998 | |
| 25. |
Deep sea mining occurs at about |
| A. | 5400 to 3700m |
| B. | 1400 to 3700m |
| C. | 2400 to 3700m |
| D. | 9400 to 3700m |
| Answer» C. 2400 to 3700m | |
| 26. |
Coal tar creosote be composed of up to 90% of |
| A. | Alkaline |
| B. | Alkane |
| C. | Aliphatic |
| D. | All of above |
| Answer» E. | |
| 27. |
MeHg stands for |
| A. | Methyl methane |
| B. | Methane mercury |
| C. | Methyl mercury |
| D. | Mercury methane |
| Answer» D. Mercury methane | |
| 28. |
Antiseptic mercurochrome and use of thiomersal in preservation of vaccines are |
| A. | Banned |
| B. | Phased out |
| C. | Formed |
| D. | Created |
| Answer» C. Formed | |
| 29. |
Anthropogenic emissions of metals, included coal fired power stations and |
| A. | Forests |
| B. | car exhausts |
| C. | Manufacturing of products |
| D. | waste from industries |
| Answer» C. Manufacturing of products | |
| 30. |
NOAA stands for |
| A. | National Oceanic and Atom Administration |
| B. | National Ozone and Atmospheric Administration |
| C. | National Oceanic and Atmospheric Administration |
| D. | National Oceanic and Atmospheric Admin |
| Answer» D. National Oceanic and Atmospheric Admin | |
| 31. |
In anaerobic conditions, mercury is present in metallic form and |
| A. | Humic Acid |
| B. | Nitric Acid |
| C. | Methane form |
| D. | Sulphide form |
| Answer» E. | |
| 32. |
A thicker sludge, successively covers gills of the |
| A. | Planktons |
| B. | Sea organism |
| C. | Fishes |
| D. | mushrooms |
| Answer» D. mushrooms | |
| 33. |
Lower medial lethal dose, higher is the |
| A. | Toxicity |
| B. | solubility |
| C. | Heat reaction |
| D. | Dosage quantity |
| Answer» B. solubility | |
| 34. |
Light Oils engrossed in diesel and |
| A. | Heavy Oil |
| B. | Kerosene |
| C. | jet oil |
| D. | light crudes |
| Answer» E. | |
| 35. |
PBBs stands for |
| A. | polybrominated biphenyls |
| B. | polychlorinated biphenyls |
| C. | polybrominated biphenols |
| D. | polyhydro biphenyls |
| Answer» B. polychlorinated biphenyls | |
| 36. |
Non calcareous fouling organisms are seaweeds, algae and |
| A. | Viruses |
| B. | Bacterial films |
| C. | Rodents |
| D. | Fungi |
| Answer» C. Rodents | |
| 37. |
In atmosphere, Nox and Sox, reacting with hydroxyl radicals and oxygen, forming |
| A. | Carbon and Nitrogen |
| B. | Oxygen and Carbon |
| C. | GHGs and water |
| D. | All of above |
| Answer» E. | |
| 38. |
PBB are used in products, such as home electrical appliance and |
| A. | Laptop cabinets |
| B. | Glass |
| C. | Wooden furniture |
| D. | painting |
| Answer» B. Glass | |
| 39. |
In whales, baleen plates are clogged due to |
| A. | Oil spill |
| B. | Plastic |
| C. | Waste material |
| D. | Sediments |
| Answer» B. Plastic | |
| 40. |
An average composition of mineral oils in paraffin is |
| A. | 0.2 |
| B. | 0.3 |
| C. | 0.1 |
| D. | 0.08 |
| Answer» C. 0.1 | |
| 41. |
Pathogens, involved in causing typhoid and |
| A. | Infections |
| B. | Fever |
| C. | Cancer |
| D. | Cholera |
| Answer» E. | |
| 42. |
Necrotic lesions are accompanied by |
| A. | Infection process |
| B. | inflammatory processes |
| C. | Blood circulation |
| D. | chemical process |
| Answer» C. Blood circulation | |
| 43. |
Poisons are produced by different plants and animals, such as |
| A. | Farm Animals |
| B. | Insects |
| C. | Lions |
| D. | Cobra |
| Answer» E. | |
| 44. |
Phytoplanktons are enable in easy absorption of |
| A. | Arsenates |
| B. | Phosphates |
| C. | HCs |
| D. | CO₂ |
| Answer» B. Phosphates | |
| 45. |
Polychlorinated biphenyls (PCBs), affecting |
| A. | Estrogen metabolism |
| B. | Blood Circulation |
| C. | Cell membrane |
| D. | Biodegradable |
| Answer» B. Blood Circulation | |
| 46. |
Sea floor plume, affecting local turbidity, clogging feeding of |
| A. | Insects |
| B. | Benthic organisms |
| C. | Animals |
| D. | Whales |
| Answer» C. Animals | |
| 47. |
Cyanobacteria such as Trichodesmium sp are able to fix |
| A. | GHGs |
| B. | Oxygen |
| C. | Carbon |
| D. | All of above |
| Answer» E. | |
| 48. |
In euphotic zone, atmospheric CO₂ and N₂ gas are fixed into |
| A. | Inorganic molecules |
| B. | Organic and Inorganic Molecules |
| C. | Plants |
| D. | All of above |
| Answer» E. | |
| 49. |
Nitrates are found in coastal up swells and |
| A. | Deep ocean |
| B. | Sea |
| C. | Rivers |
| D. | Lakes |
| Answer» B. Sea | |
| 50. |
Almost, 50% of N₂ gas produced in oceans, emerged from |
| A. | Anammox process |
| B. | Photosynthesis |
| C. | Eutrophication |
| D. | Desertification |
| Answer» B. Photosynthesis | |