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. |
The movement "Pani Panjayath" was initiated to conserve waters in the drought prone areas of _______state.? |
| A. | Tamilnadu |
| B. | Rajasthan |
| C. | Maharashtra |
| D. | Karnataka |
| Answer» D. Karnataka | |
| 2. |
Death rate of the population? |
| A. | Mortality |
| B. | Viability |
| C. | Natality |
| D. | Vitality |
| Answer» B. Viability | |
| 3. |
An association between two individuals or populations where both are benefitted and where neither can survive without the other is? |
| A. | competition |
| B. | commensalism |
| C. | mutualism |
| D. | protocoperation |
| Answer» D. protocoperation | |
| 4. |
The carrying capacity of a population is determined by its? |
| A. | population growth rate |
| B. | natality |
| C. | mortality |
| D. | limiting resources |
| Answer» E. | |
| 5. |
Diversity of organisms include three Domains such as? |
| A. | bacteria, archae, eukarya |
| B. | binomial system of classification |
| C. | monera, protista, fungi, plantae, animalia |
| D. | membrane bound organelles, no peptidoglycan in cell walls, introns |
| Answer» B. binomial system of classification | |
| 6. |
_________ is a mixture of 50 - 90% of methane? |
| A. | Natural gas |
| B. | Air |
| C. | Water |
| D. | Bio diesel |
| Answer» B. Air | |
| 7. |
Carbon dioxide is called green-house gas because it is? |
| A. | Transparent to sunlight but traps heat |
| B. | Transparent to heat but traps sunlight |
| C. | Used in green-house to increase plant growth |
| D. | Transparent to both sunlight and heat |
| Answer» B. Transparent to heat but traps sunlight | |
| 8. |
Noise is _______________? |
| A. | Huge sound |
| B. | Sound of vehicles |
| C. | Undesirable and unwanted sound |
| D. | Sound of crackers |
| Answer» D. Sound of crackers | |
| 9. |
Slip erosion is also known as? |
| A. | landslide |
| B. | Earthquake |
| C. | Volcano |
| D. | Floads |
| Answer» B. Earthquake | |
| 10. |
Normally rain water is slightly? |
| A. | Pure |
| B. | Acidic |
| C. | Toxic |
| D. | Oxidize |
| Answer» C. Toxic | |
| 11. |
The sun emits its greatest intensity of radiation in:? |
| A. | The visible portion of the spectrum |
| B. | The infrared portion of the spectrum |
| C. | The ultraviolet portion of the spectrum |
| D. | The x-ray portion of the spectrum |
| Answer» B. The infrared portion of the spectrum | |
| 12. |
Aquatic life is damaged by? |
| A. | Sound pollution |
| B. | Air Pollution |
| C. | Thermal pollution |
| D. | All of these |
| Answer» D. All of these | |
| 13. |
The concept that 'population tends to increase geometrically while food supply increases arithmetically' was put forward by? |
| A. | Adam Smith |
| B. | Charles Darwin |
| C. | Thomas Malthus |
| D. | Stuart Mill |
| Answer» D. Stuart Mill | |
| 14. |
Which of the radioactive material is largely associated with bone cancer? |
| A. | Radium-226 |
| B. | Thorium-232 |
| C. | Strontium-90 |
| D. | Iodine |
| Answer» D. Iodine | |
| 15. |
The pyramid of energy in terrestrial ecosystem is? |
| A. | Upright |
| B. | Inverted |
| C. | Spindle shaped |
| D. | Irregular |
| Answer» B. Inverted | |
| 16. |
When a liquid thermometer is held in direct sunlight,? |
| A. | It will accurately measure the air temperature |
| B. | It will measure a much higher temperature than that of the air |
| C. | It will measure a much lower temperature than that of the air |
| D. | It will measure the temperature of the sun rather than the air |
| Answer» C. It will measure a much lower temperature than that of the air | |
| 17. |
Water used for paper mills should not contain? |
| A. | magnesium |
| B. | sodium |
| C. | iron |
| D. | chlorine |
| Answer» D. chlorine | |
| 18. |
The process of successful establishment of the species in a new area is called? |
| A. | sere |
| B. | climax |
| C. | invasion |
| D. | ecesis |
| Answer» E. | |
| 19. |
Carbon monoxide is a pollutant because it? |
| A. | reacts with 02 |
| B. | reacts with haemoglobin |
| C. | inhibits glycolysis |
| D. | inactivates nervous system A |
| Answer» C. inhibits glycolysis | |
| 20. |
The temperature scale where 0o represents freezing and 100o boiling:? |
| A. | Fahrenheit |
| B. | Celsius |
| C. | Kelvin |
| D. | Absolute |
| Answer» C. Kelvin | |
| 21. |
When it is January and winter in the Northern Hemisphere, it is ______and ________in the Southern Hemisphere.? |
| A. | January and summer |
| B. | January and winter |
| C. | July and winter |
| D. | July and summer |
| Answer» B. January and winter | |
| 22. |
_______ tree is known as "flame of the forest"?? |
| A. | Zizyphus |
| B. | Butea monosperma |
| C. | Jackfruit |
| D. | Pongamea |
| Answer» C. Jackfruit | |
| 23. |
The cutting down of trees and setting them on fire and raising crops on the resulting ash is called:? |
| A. | Pyrolysis |
| B. | Jhum |
| C. | Taungya system |
| D. | Shift cultivation |
| Answer» C. Taungya system | |
| 24. |
Utilisation of natural resources in moderate manner to remaining something for the next generation is termed as? |
| A. | Resettlement |
| B. | Sustainable development |
| C. | Rehabilitation |
| D. | Mutual development |
| Answer» C. Rehabilitation | |
| 25. |
What is edge species?? |
| A. | The species which occur abundantly in the ecotone |
| B. | Species on the verge of extinction |
| C. | Rare species |
| D. | Endemic species |
| Answer» B. Species on the verge of extinction | |
| 26. |
Who had stated in the Stockholm Conference in 1972 that poverty was the greatest polluter?? |
| A. | Indira Gandhi |
| B. | Mahatma Gandhi |
| C. | Rajiv Gandhi |
| D. | Jawaharlal Nehru |
| Answer» B. Mahatma Gandhi | |
| 27. |
Acid is an example of _____________? |
| A. | Corrosive waste |
| B. | Infectious waste |
| C. | Radioactive waste |
| D. | Ignitable waste |
| Answer» B. Infectious waste | |
| 28. |
An example of lotic system |
| A. | Pond |
| B. | River |
| C. | Lake |
| D. | Reservoir |
| Answer» C. Lake | |
| 29. |
Heat transferred outward from the surface of the moon can take place by: |
| A. | Convection |
| B. | Conduction |
| C. | Latent heat |
| D. | Radiation |
| Answer» E. | |
| 30. |
Photochemical smog is called |
| A. | Tokyo smog |
| B. | London smog |
| C. | Los Angeles smog |
| D. | None |
| Answer» C. Los Angeles smog | |
| 31. |
What is Bagasse? What is it used for? |
| A. | Sugar cane waste --used as to make paper |
| B. | Biogas -- used as fuel |
| C. | Liquid waste --used as fertilizer |
| D. | Vermi compost - used as fertilizer |
| Answer» B. Biogas -- used as fuel | |
| 32. |
The maintenance of relatively constant internal environment is called |
| A. | Homeostasis |
| B. | Exotherms |
| C. | Homeobox |
| D. | Endotherms |
| Answer» B. Exotherms | |
| 33. |
Which functional feeding groups are involved in the process of in-stream physical breakdown of coarse material into fine particulate organic matter? |
| A. | Collector filterers |
| B. | Shredders |
| C. | Grazers |
| D. | Collector gatherers |
| Answer» C. Grazers | |
| 34. |
Which of the following gas is present at a very high concentration in our environment? |
| A. | O2 |
| B. | CO2 |
| C. | H2 |
| D. | N2 |
| Answer» E. | |
| 35. |
Which of the following is a nonrenewable energy resource? |
| A. | Solar |
| B. | Methane |
| C. | Hydroelectric |
| D. | Coal |
| Answer» E. | |
| 36. |
The world s biggest GHG emitter is |
| A. | China |
| B. | USA |
| C. | India |
| D. | South Africa |
| Answer» B. USA | |
| 37. |
Ex situ conservation includes |
| A. | Zoo |
| B. | Botanic garden |
| C. | Germplasm bank |
| D. | all of the above |
| Answer» E. | |
| 38. |
Natural gas that was formed from ancient prehistoric forests is called |
| A. | Fossil fuels |
| B. | petroleum |
| C. | Gobar gas |
| D. | LPG |
| Answer» B. petroleum | |
| 39. |
Which of the following is not considered a temperature scale? |
| A. | Fahrenheit |
| B. | Kelvin |
| C. | Calorie |
| D. | Celsius |
| Answer» D. Celsius | |
| 40. |
Animals that feed only on plants are called |
| A. | detritivores |
| B. | herbivores |
| C. | carnivores |
| D. | omnivores |
| Answer» C. carnivores | |
| 41. |
Which one of the following is the correct percentage of the two green house gases that contribute to the total global warming? |
| A. | N2O-6%, CO2 -86% |
| B. | Methane-20%, N2O-18 |
| C. | CFCs -14%, Methane-20% |
| D. | CO2-40%,CFCs-30% |
| Answer» C. CFCs -14%, Methane-20% | |
| 42. |
UV radiations is injurious to plants because it |
| A. | break phosphate bonds |
| B. | increases respiration |
| C. | causes dehydration |
| D. | causes genetic changes |
| Answer» E. | |
| 43. |
The phenomenon of accumulation of non-biodegradable pesticides in human beings |
| A. | Biomagnification |
| B. | Bioaccumulation |
| C. | Biodegradation |
| D. | Bioremediation |
| Answer» C. Biodegradation | |
| 44. |
The study of food chains and food webs is observed in the phenomenon known as |
| A. | biological chain |
| B. | ecosystem |
| C. | biological magnification |
| D. | energy flow |
| Answer» D. energy flow | |
| 45. |
Total amount of living material at the various trophic levels of a food chain is depicted by pyramids of |
| A. | numbers |
| B. | energy |
| C. | biomass |
| D. | all of these |
| Answer» D. all of these | |
| 46. |
What is an Incinerator? |
| A. | Furnace used for burning solid waste |
| B. | Furnace used for treating liquid waste |
| C. | Both a & b |
| D. | None of the above |
| Answer» B. Furnace used for treating liquid waste | |
| 47. |
In the middle latitudes of the Northern Hemisphere, surface winds tend to blow ____ and ____ around an area of surface low pressure. |
| A. | Clockwise; inward |
| B. | Clockwise; outward |
| C. | Counterclockwise; inward |
| D. | Counterclockwise; outward |
| Answer» D. Counterclockwise; outward | |
| 48. |
The forests which occur in law rain fall area is |
| A. | Evergreen forests |
| B. | deciduous forests |
| C. | Coniferous forest |
| D. | all the above |
| Answer» C. Coniferous forest | |
| 49. |
Organisms which depened on Producers for nutrition are called |
| A. | Autotrophs |
| B. | Saprophytes |
| C. | Consumers |
| D. | Xerophytes |
| Answer» D. Xerophytes | |
| 50. |
If the air temperature remains constant, evaporating water into the air will ____ the dew point and ____ the relative humidity. |
| A. | Increase, increase |
| B. | Increase, decrease |
| C. | Decrease, increase |
| D. | Decrease, decrease |
| Answer» B. Increase, decrease | |