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. |
Ozone hole is said to occur when the ozone level decreases below |
| A. | 2 DU |
| B. | 20 DU |
| C. | 200 DU |
| D. | 2000 DU |
| Answer» D. 2000 DU | |
| 2. |
Cholera and Typhoid are caused by |
| A. | Virus |
| B. | Fungus |
| C. | Housefly |
| D. | Bacteria |
| Answer» E. | |
| 3. |
Non-point source of water pollution is caused by |
| A. | Pipes |
| B. | Ditches |
| C. | Sewers |
| D. | Mining wastes |
| Answer» E. | |
| 4. |
ELA is related to : |
| A. | Environmental Impact Assessment |
| B. | Environmental and Industrial Activities |
| C. | Environmental Internal Activities |
| D. | Environmental Impact Activities |
| Answer» B. Environmental and Industrial Activities | |
| 5. |
Which of the following is a biodegradable pollutant? |
| A. | CFC |
| B. | DDT |
| C. | Freon's |
| D. | Sewage |
| Answer» E. | |
| 6. |
An ecosystem is a region in which |
| A. | Dead organism interact with their environment |
| B. | Living organism interact with their environment |
| C. | Living organism do not interact with their environment |
| D. | All of the above |
| Answer» C. Living organism do not interact with their environment | |
| 7. |
The type of mass movement characterized by a slow and gradual down slope movement is known as |
| A. | Creep |
| B. | Rockfill |
| C. | Landslide |
| D. | Mud flow |
| Answer» E. | |
| 8. |
Use of Compressed Natural Gas (CNG) came into effect from |
| A. | Dec 2000 |
| B. | Dec-01 |
| C. | Dec-02 |
| D. | Dec-03 |
| Answer» D. Dec-03 | |
| 9. |
Global warming means : |
| A. | Increase in Earth's Body Temperature |
| B. | Increase in solar radiation |
| C. | Acid Rain |
| D. | All the above |
| Answer» B. Increase in solar radiation | |
| 10. |
The volume of nitrogen present in the troposphere is |
| A. | 0.05 |
| B. | 0.21 |
| C. | 0.78 |
| D. | 0.85 |
| Answer» D. 0.85 | |
| 11. |
Water quality involves measuring the number of colonies of |
| A. | Cells |
| B. | Protozoa |
| C. | Chromozomes |
| D. | Coliform bacteria |
| Answer» C. Chromozomes | |
| 12. |
Major problem/s due to industrialization is/are |
| A. | Urbanization |
| B. | Migration of people |
| C. | Development of slums |
| D. | All of the above |
| Answer» E. | |
| 13. |
Social security is one of the most important programmes providing benefits to |
| A. | Un-employee |
| B. | Worker/employee |
| C. | Families of deceased |
| D. | All of the above |
| Answer» E. | |
| 14. |
The term ecosystem was first proposed by |
| A. | Costanza |
| B. | Tyler Miller |
| C. | A.G. Tansley |
| D. | Jacob Van Verkul |
| Answer» D. Jacob Van Verkul | |
| 15. |
Nitrogen fixation from the atmosphere is high in which type of plants? |
| A. | Liguminus |
| B. | Manocoteliden |
| C. | Both (a) and (b) |
| D. | None of the above |
| Answer» B. Manocoteliden | |
| 16. |
Organisms who directly feed on producers are called : |
| A. | Herbivores |
| B. | Omnivores |
| C. | Carnivores |
| D. | Decomposers |
| Answer» B. Omnivores | |
| 17. |
Facultative Bacteria exisiing in which type of Environmental condition? |
| A. | Presence of oxygen |
| B. | Absence of oxygen |
| C. | Both (a) and (b) |
| D. | None of these |
| Answer» D. None of these | |
| 18. |
The basic element in fossil fuels is |
| A. | Oxygen |
| B. | Carbon |
| C. | Sulphur |
| D. | Phosphorus |
| Answer» C. Sulphur | |
| 19. |
Tendency of pollutants to become concentrated in successive tropic levels is known as |
| A. | Biopiracy |
| B. | Biorhythm |
| C. | Bioremediation |
| D. | Biomagnification |
| Answer» E. | |
| 20. |
'Wild Life Protection Act' was enacted in the year |
| A. | 1971 |
| B. | 1972 |
| C. | 1973 |
| D. | 1974 |
| Answer» C. 1973 | |
| 21. |
The major objective of the family welfare programs in India is |
| A. | Disease control |
| B. | Employment generation |
| C. | Population growth rate control |
| D. | None of these |
| Answer» D. None of these | |
| 22. |
Percentage of nitrogen in earth's atmosphere is |
| A. | 0.12 |
| B. | 0.21 |
| C. | 0.78 |
| D. | 0.98 |
| Answer» D. 0.98 | |
| 23. |
The term 'Refuse' generally does not include is |
| A. | Ashes |
| B. | Excreta |
| C. | Putrescible solid waste |
| D. | Non putrescible solid waste |
| Answer» B. Excreta | |
| 24. |
What is the Max. allowable concentration of Iron content in drinking water ? |
| A. | 0.5 mg/l |
| B. | I.0 mg/l |
| C. | 1.5 mg/l |
| D. | 2.0 mg/l |
| Answer» D. 2.0 mg/l | |