MCQOPTIONS
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MCQOPTIONS
This section includes 1049 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 401. |
_ The areas where soil is washed away into streams, transported into rivers and finally lost to the sea are called$? |
| A. | Ecologically sensitive areas |
| B. | Grasslands |
| C. | Delta |
| D. | Biologically sensitive areas |
| Answer» B. Grasslands | |
| 402. |
_ As the air temperature increases, with no addition of water vapor to the air, the dew point will:$? |
| A. | Remain the same |
| B. | Increase |
| C. | Decrease |
| D. | Increase and become equal to the air temperature |
| Answer» B. Increase | |
| 403. |
_ If you want to keep an object cool while exposed to direct sunlight,$? |
| A. | Put it inside a brown paper bag |
| B. | Wrap it in black paper |
| C. | Wrap it in aluminum foil with the shiny side facing inward |
| D. | Wrap it in aluminum foil with the shiny side facing outward |
| Answer» E. | |
| 404. |
_ The processes of condensation and freezing:$? |
| A. | Both release sensible heat into the environment |
| B. | Both absorb sensible heat from the environment |
| C. | Do not affect the temperature of their surroundings |
| D. | Do not involve energy transport |
| Answer» B. Both absorb sensible heat from the environment | |
| 405. |
_ The unit of total water content of the soil is known as$? |
| A. | Holard |
| B. | Chraserd |
| C. | Echard |
| D. | All of the above |
| Answer» B. Chraserd | |
| 406. |
_ Which of the following determine the kind (wavelength) and amount of radiation that an object emits?$? |
| A. | Temperature |
| B. | Thermal conductivity |
| C. | Density |
| D. | Latent heat |
| Answer» B. Thermal conductivity | |
| 407. |
_ The state which constituted green bench$? |
| A. | Kerala |
| B. | Tamilnadu |
| C. | Assam |
| D. | Madhya Pradesh |
| Answer» C. Assam | |
| 408. |
_ An example of nitrogen fixing bacteria in the soil$? |
| A. | Rhizobium |
| B. | Nostoc |
| C. | Azotobacter |
| D. | Nitrobacter |
| Answer» D. Nitrobacter | |
| 409. |
_ Which of the following processes acts to remove carbon dioxide from the atmosphere?$? |
| A. | Lightning |
| B. | Deforestation |
| C. | Photosynthesis |
| D. | Burning fossil fuels |
| Answer» D. Burning fossil fuels | |
| 410. |
_ Ecotype is a type of species in which environmentally induced variations are$? |
| A. | Temporary |
| B. | Genetically fixed |
| C. | Genetically not related |
| D. | None of the above |
| Answer» C. Genetically not related | |
| 411. |
_ What is troposphere?$? |
| A. | Portion of air |
| B. | Portion of water |
| C. | Lowest layer of atmosphere where we survive |
| D. | Portion of sky |
| Answer» D. Portion of sky | |
| 412. |
_ Which one of the following is the non-renewable resource?$? |
| A. | Water |
| B. | Oxygen |
| C. | Sunlight |
| D. | Coal |
| Answer» E. | |
| 413. |
_ As the difference between the air temperature and the dew point increases, the relative humidity:$? |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant at a value less than 100% |
| D. | Remains constant and equal to 100% |
| Answer» C. Remains constant at a value less than 100% | |
| 414. |
_ The water management Act is complemented by the waste water charges Act at$? |
| A. | 34641 |
| B. | 14631 |
| C. | 35277 |
| D. | 36059 |
| Answer» B. 14631 | |
| 415. |
_ The controversial dam across the river Narmada?$? |
| A. | Sardar Sarovar |
| B. | Hirakud |
| C. | Bhakranangal |
| D. | Sutlej. |
| Answer» B. Hirakud | |
| 416. |
_ Acid rain contains$? |
| A. | Sulphuric acid |
| B. | Hydrochloric acid |
| C. | Oxalic acid |
| D. | Acetic acid |
| Answer» B. Hydrochloric acid | |
| 417. |
_ The response of predator to prey and vice- versa, over ten of thousands of years, produces physical and behavioral changes in a process called$? |
| A. | Co-evolution |
| B. | Evolution |
| C. | Origin |
| D. | Development |
| Answer» B. Evolution | |
| 418. |
_ In an oil trap formed by an anticline, __________ accumulates on top, __________ in the middle, and __________ at the bottom$? |
| A. | natural gas, oil, groundwater |
| B. | ground water, oil, natural gas |
| C. | oil, groundwater, natural gas |
| D. | oil, natural gas, ground water |
| Answer» B. ground water, oil, natural gas | |
| 419. |
_ Which of the following is a secondary pollutant$? |
| A. | CO2 |
| B. | CO |
| C. | O3 |
| D. | SO2 |
| Answer» D. SO2 | |
| 420. |
_ Man made sources of radiation pollution are:$? |
| A. | mining |
| B. | explosion of nuclear weapons |
| C. | nuclear fuels and preparation of radioactive isotopes |
| D. | all of these |
| Answer» E. | |
| 421. |
_ Infrared and visible satellite images might provide:$? |
| A. | A way of determining cloud thickness and altitude. |
| B. | A way of distinguishing between wet and dry clouds. |
| C. | A way of identifying clouds suitable for cloud seeding. |
| D. | A way of distinguishing between "new" and "old" clouds. |
| Answer» B. A way of distinguishing between wet and dry clouds. | |
| 422. |
_ Natural earthquakes are caused by __________$? |
| A. | Earth's crust |
| B. | Deep seas |
| C. | Peak mountains |
| D. | Forests |
| Answer» B. Deep seas | |
| 423. |
_ The ozone at ground level is primarily from __________ precursors$? |
| A. | Fossil fuel |
| B. | CFCs |
| C. | Oxygen |
| D. | Methane |
| Answer» B. CFCs | |
| 424. |
_ Mycorrhiza represents$? |
| A. | Symbiotic association between a fungus and liverworts |
| B. | Parasitic association between a fungus and an alga |
| C. | Parasitic association between a fungus and roots of plants |
| D. | Symbiotic association between a fungus and roots of higher plants |
| Answer» E. | |
| 425. |
_ Harmful trace metals in fly ash:$? |
| A. | antimony |
| B. | cadmium |
| C. | arsenic |
| D. | all of the above |
| Answer» E. | |
| 426. |
_ Which sea is referred to as an oceanic desert?$? |
| A. | Red Sea |
| B. | Sargasso Sea |
| C. | Arabian Sea |
| D. | Sea of Japan |
| Answer» C. Arabian Sea | |
| 427. |
_ The species that flower are called$? |
| A. | gymnosperms |
| B. | bryophytes |
| C. | angiosperms |
| D. | algae |
| Answer» D. algae | |
| 428. |
_ Ramsar Convention refers to the conservation of ____________$? |
| A. | Deserts |
| B. | Wetlands |
| C. | Agriculture lands, |
| D. | Forest land |
| Answer» C. Agriculture lands, | |
| 429. |
_ Soil pollution is caused by$? |
| A. | Aerosol |
| B. | Ozone |
| C. | Acid rain |
| D. | PAN |
| Answer» D. PAN | |
| 430. |
__Boron, Zinc and Manganese are usually referred to as__ |
| A. | Micronutrients |
| B. | Macronutrients |
| C. | Soil Vitamins |
| D. | MBZ nutrients |
| Answer» B. Macronutrients | |
| 431. |
__Nitrogen oxide and hydrocarbons released by automobiles interact to form__ |
| A. | CO |
| B. | PAN |
| C. | SO2 |
| D. | Aerosol |
| Answer» E. | |
| 432. |
__Sulphur bacteria are examples of__ |
| A. | Carnivores |
| B. | Heterotrophs |
| C. | Saprophytes |
| D. | Autotrophs |
| Answer» E. | |
| 433. |
__________ is diffused into the ground by gravitational force.__ |
| A. | Rain water |
| B. | Ocean |
| C. | River water |
| D. | None of the above |
| Answer» B. Ocean | |
| 434. |
__CFCs are used as__ |
| A. | refrigerants |
| B. | insulators |
| C. | aerosol propellants |
| D. | all the above |
| Answer» E. | |
| 435. |
__Climate includes__ |
| A. | Seasonal variation |
| B. | General patterns of atmosphere conditions |
| C. | Average weather of an area |
| D. | All of these |
| Answer» E. | |
| 436. |
__If water vapor comprises 3.5 percent of an air parcel whose total pressure is 1,000 mb, the water vapor pressure would be:__ |
| A. | 1,035 mb |
| B. | 35 mb |
| C. | 350 mb |
| D. | 965 mb |
| Answer» C. 350 mb | |
| 437. |
__The first global environmental protection treaty "The Montreal Protocol" was signed on Sept. 26.__ |
| A. | 1985 |
| B. | 1990 |
| C. | 1981 |
| D. | 1987 |
| Answer» E. | |
| 438. |
__The sun emits a maximum amount of radiation at wavelengths near ____, while the earth emits maximum radiation near wavelengths of ____.__ |
| A. | 0.5 micrometers, 30 micrometers |
| B. | 0.5 micrometers, 10 micrometers |
| C. | 10 micrometers, 30 micrometers |
| D. | 1 micrometer, 10 micrometers |
| Answer» C. 10 micrometers, 30 micrometers | |
| 439. |
__Energy transformation through the food chain is__ |
| A. | Regular |
| B. | Comfortable |
| C. | Proposed |
| D. | Inefficient |
| Answer» E. | |
| 440. |
__The transfer of heat by molecule-to-molecule contact is:__ |
| A. | Conduction |
| B. | Convection |
| C. | Radiation |
| D. | Ultrasonic |
| Answer» B. Convection | |
| 441. |
__"Silent Spring" is a well known book written by__ |
| A. | John Miller |
| B. | Charles Darwin |
| C. | Rachel Carson |
| D. | Aldoleopold |
| Answer» D. Aldoleopold | |
| 442. |
__Study of inter-relationship between organisms and their environment is__ |
| A. | Ecology |
| B. | Ecosystem |
| C. | Phytogeography |
| D. | Ethology |
| Answer» B. Ecosystem | |
| 443. |
__The expansion on PQLI is__ |
| A. | Physical quality of life index |
| B. | Population quotient of life in India |
| C. | Poor quality of life in India |
| D. | Poverty, quality of life in India |
| Answer» B. Population quotient of life in India | |
| 444. |
__The European Union has a permanent ban on the use of __________ in toys.__ |
| A. | Phthalates |
| B. | Clay |
| C. | Polycarbonate |
| D. | Bisphenol |
| Answer» B. Clay | |
| 445. |
__Carbon mono oxide is a pollutant because__ |
| A. | it reacts with O2 |
| B. | it inhibits glycolysis |
| C. | makes nervous system inactive |
| D. | reacts with haemoglobin |
| Answer» E. | |
| 446. |
__Animals and plants are best protected in__ |
| A. | Zoos |
| B. | Botanical Gardens |
| C. | National Parks |
| D. | Sanctuaries |
| Answer» D. Sanctuaries | |
| 447. |
__The relationship between nitrogen fixing bacteria and leguminous plants is an example for__ |
| A. | Parasitism |
| B. | Predation |
| C. | Mutualism |
| D. | Commensalism |
| Answer» D. Commensalism | |
| 448. |
__The order of succession in a lithosere or xerosere is__ |
| A. | Foliose lichen stage->Crustose lichen stage->moss stage->herb stage>shrub stage->forest stage (climax community) |
| B. | Crustose lichen stage->Foilose lichen stage->moss stage->herb stage>shrub stage->forest stage (climax community) |
| C. | Moss stage ->Foilose lichen stage-> Crustose lichen stage ->herb stage->shrub stage->forest stage (climax community) |
| D. | Crustose lichen stage->Foilose lichen stage->moss stage-> ->shrub stage-> herb stage->forest stage (climax community) |
| Answer» C. Moss stage ->Foilose lichen stage-> Crustose lichen stage ->herb stage->shrub stage->forest stage (climax community) | |
| 449. |
__What do you call the rain that contains chemical waste and causes of damage to plants and animals?__ |
| A. | Smog |
| B. | Acid rain |
| C. | Monsoon rain |
| D. | Seasonal rain |
| Answer» C. Monsoon rain | |
| 450. |
__The source of atmospheric oxygen is__ |
| A. | Nitrogen cycle |
| B. | Green Plants |
| C. | Water |
| D. | Carbon Cycle |
| Answer» C. Water | |