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.
| 251. |
*$_The term "Biocoenosis" was proposed by? |
| A. | Transley |
| B. | Carl Mobius |
| C. | Warming |
| D. | None of the above |
| Answer» C. Warming | |
| 252. |
*$________ is a marine tortoise which shows the unique phenomenon "arribada"? |
| A. | Olive Ridley |
| B. | Star Tortoise |
| C. | Travancore Tortoise |
| D. | A & C |
| Answer» B. Star Tortoise | |
| 253. |
*$_Harnessing of nuclear energy often causes ________ pollution? |
| A. | Air |
| B. | Water |
| C. | Thermal |
| D. | Noise |
| Answer» D. Noise | |
| 254. |
*$_The lower limit of water availability is soil is known as? |
| A. | Field capacity |
| B. | Hypolimnion |
| C. | Thermocline |
| D. | Wilting point |
| Answer» E. | |
| 255. |
*$_What is the animal symbol of W. W. F (World Wildlife Fund) ?? |
| A. | Red Panda |
| B. | Giant Panda |
| C. | Tiger |
| D. | Kangaroo |
| Answer» C. Tiger | |
| 256. |
*$_In which of the following the maximum plant diversity is found? |
| A. | Tropical evergreen forests |
| B. | Tropical moist deciduous forests |
| C. | Sub tropical mountain forests |
| D. | Temperate moist forests |
| Answer» B. Tropical moist deciduous forests | |
| 257. |
*$_In grassland ecosystem, the pyramid of biomass is? |
| A. | upright |
| B. | inverted |
| C. | spindle shaped |
| D. | none of these |
| Answer» B. inverted | |
| 258. |
*$_Human population growth curve is a:? |
| A. | S shaped curve |
| B. | parabola curve |
| C. | J shaped curve |
| D. | zig zag curve |
| Answer» D. zig zag curve | |
| 259. |
*$_According to Wein's displacement law, the wavelength at which maximum radiation occurs? |
| A. | Is inversely proportional to the temperature |
| B. | Is proportional to the temperature |
| C. | Is inversely proportional to the pressure |
| D. | Is proportional to the pressure |
| Answer» B. Is proportional to the temperature | |
| 260. |
*$_Low level ozone is referred to as __________ ozone? |
| A. | tropospheric |
| B. | stratospheric |
| C. | ionosperic |
| D. | exospheric |
| Answer» B. stratospheric | |
| 261. |
*$_A high density of elephant population in an area can result in? |
| A. | mutualism |
| B. | Intraspecific competition |
| C. | Interspecific competition |
| D. | Predation on one another |
| Answer» C. Interspecific competition | |
| 262. |
*$_Salim Ali Centre for Ornithology and Natural history is located at ______? |
| A. | Pune |
| B. | Hyderabad |
| C. | Kerala |
| D. | Coimbatore |
| Answer» E. | |
| 263. |
*$_Point Calimere sanctuary is situated in which state?? |
| A. | Tamilnadu |
| B. | Kerala |
| C. | Karnataka |
| D. | Gujrath |
| Answer» B. Kerala | |
| 264. |
*$_Noise is measured using sound meter and the unit is? |
| A. | hertz |
| B. | decibel |
| C. | joule |
| D. | sound |
| Answer» C. joule | |
| 265. |
*$_Which one of the following ecosystem type has the highest annual net primary productivity?? |
| A. | Tropical deciduous forest |
| B. | Tropical rain forest |
| C. | Temperate deciduous forest |
| D. | Temperate evergreen forest |
| Answer» C. Temperate deciduous forest | |
| 266. |
*$_If the sun suddenly began emitting more energy, the earth's radiative equilibrium temperature would:? |
| A. | Increase |
| B. | Decrease |
| C. | Remain the same |
| D. | Begin to oscillate |
| Answer» B. Decrease | |
| 267. |
*$_Light energy is transformed into chemical energy by? |
| A. | Photosynthesis |
| B. | Respiration |
| C. | Recycling |
| D. | Productivity |
| Answer» B. Respiration | |
| 268. |
*$_Dodo is? |
| A. | Endangered |
| B. | Critically endangered |
| C. | Rare |
| D. | Extinct |
| Answer» E. | |
| 269. |
*$_A strong radiation inversion is more likely to occur on a:? |
| A. | Warm, windy night. |
| B. | Cool, windy night. |
| C. | Rainy night with light winds. |
| D. | Clear night with light winds. |
| Answer» E. | |
| 270. |
*/*_What is Plankton?? |
| A. | Microscopic floating organisms - Plants and animals. |
| B. | bottom dwelling aquatic organisms |
| C. | large plants in water |
| D. | none |
| Answer» B. bottom dwelling aquatic organisms | |
| 271. |
*/*_Molten rock deep inside the earth is called? |
| A. | core |
| B. | valcano |
| C. | lava |
| D. | magma |
| Answer» E. | |
| 272. |
*/*_A high Biological Oxygen Demand (BOD) indicates that:? |
| A. | water is pure |
| B. | absence of microbial action |
| C. | Low level of microbial pollution |
| D. | High level of microbial pollution |
| Answer» E. | |
| 273. |
*/*_The earth's radiation is often referred to as ________radiation, while the sun's radiation is often referred to as _________radiation.? |
| A. | Shortwave, longwave |
| B. | Shortwave, shortwave |
| C. | Longwave, shortwave |
| D. | Longwave, longwave |
| Answer» D. Longwave, longwave | |
| 274. |
*/*_Hypothermia is most common in:? |
| A. | Hot, humid weather |
| B. | Cold, wet weather |
| C. | Hot, dry weather |
| D. | Cold, dry weather |
| Answer» C. Hot, dry weather | |
| 275. |
*/*_In the atmosphere, tiny solid or liquid suspended particles of various composition are called:? |
| A. | Aerosols |
| B. | Carcinogens |
| C. | Greenhouse gases |
| D. | Microbes |
| Answer» B. Carcinogens | |
| 276. |
*/*_The destruction of habitat of plants and animals is called? |
| A. | endemism |
| B. | endangered species |
| C. | habitat loss |
| D. | flood |
| Answer» D. flood | |
| 277. |
*/*_The combustion of waste in the absence of Oxygen is called? |
| A. | Haemolysis |
| B. | Pyrolysis |
| C. | Hydrolysis |
| D. | None |
| Answer» C. Hydrolysis | |
| 278. |
*/*_The biggest award for environmental activities in India is given in the name of an individual. In whose name is it constituted?? |
| A. | Lal Bahadur Shasthri |
| B. | Morarji Desai |
| C. | Indira Gandhi |
| D. | Kamaraj |
| Answer» D. Kamaraj | |
| 279. |
*/*__________ is the phenomenon where the earth retains heat.? |
| A. | Air pollution |
| B. | Green house effect |
| C. | Global effect |
| D. | Land pollution |
| Answer» C. Global effect | |
| 280. |
*/*_Which among the following is mobile in nature?? |
| A. | Primary productivity |
| B. | Secondary productivity |
| C. | GPP |
| D. | NPP |
| Answer» C. GPP | |
| 281. |
*/*_What is Carcinogen?? |
| A. | Drugs for curing infectious disease |
| B. | Drugs used for curing cancer |
| C. | Cancer causing agent |
| D. | Food colourants |
| Answer» D. Food colourants | |
| 282. |
*/*_The effect of ozone depletion include? |
| A. | UV light reaches the earth |
| B. | affect the climate |
| C. | cause skin cancer |
| D. | all the above |
| Answer» E. | |
| 283. |
*/*_Warming in the stratosphere is mainly caused by:? |
| A. | Absorption of ultraviolet radiation by ozone |
| B. | Release of latent heat energy during condensation |
| C. | Chemical reactions between ozone and chlorofluorocarbons |
| D. | Frictional heating caused by meteorites |
| Answer» B. Release of latent heat energy during condensation | |
| 284. |
*/*_The pollutant that causes hole in the ozone layer is? |
| A. | SF6 |
| B. | nitrousoxide |
| C. | CFCs |
| D. | PFCs |
| Answer» D. PFCs | |
| 285. |
*/*_Trichodermaharzianum has proved a useful microorganism for? |
| A. | reclamation of wastelands |
| B. | bioremediation of contaminated soils |
| C. | biological control of soil-borne plant pathogens |
| D. | gene transfer in higher plants |
| Answer» C. biological control of soil-borne plant pathogens | |
| 286. |
*/*_Any unfavorable alteration of the environment may be called as? |
| A. | eutrophication |
| B. | environmental pollution |
| C. | biomagnigication |
| D. | bioaccumulation |
| Answer» C. biomagnigication | |
| 287. |
*/*_If there is no atmosphere, the colour of the sky will be? |
| A. | white |
| B. | colourless |
| C. | blue |
| D. | black |
| Answer» E. | |
| 288. |
*/*_In the stratosphere, the air temperature normally:? |
| A. | Decreases with increasing height |
| B. | Increases with increasing height |
| C. | Both increases and decreases depending on the season |
| D. | Cannot be measured |
| Answer» C. Both increases and decreases depending on the season | |
| 289. |
*/*_The movement "Beej Bachao Andolan" was aimed for the conservation of _______? |
| A. | trees |
| B. | shrubs |
| C. | crops |
| D. | coconut |
| Answer» D. coconut | |
| 290. |
*/*_Earth summit of Rio de Janeiro (1992) resulted in? |
| A. | Compilation of Red list |
| B. | Establishment of biosphere reserves |
| C. | Conservation of biodiversity |
| D. | IUCN |
| Answer» D. IUCN | |
| 291. |
*/*_Which of the following has the least similarity when comparing two examples of the same biome located in different parts of the world?? |
| A. | Climate |
| B. | Latitude |
| C. | Continent |
| D. | Elevation |
| Answer» D. Elevation | |
| 292. |
*/*_As it travels along the food chain, the concentration of DDT? |
| A. | increases |
| B. | remains constant |
| C. | decreases |
| D. | fluctuates randomly |
| Answer» B. remains constant | |
| 293. |
*/*_The crack marked on a glacier due to splitting of ice is called? |
| A. | watershed |
| B. | crevasses |
| C. | delta |
| D. | glacier |
| Answer» C. delta | |
| 294. |
*/*_As the air temperature increases, with no addition of water vapor to the air, the relative humidity will:? |
| A. | Remain the same |
| B. | Increase |
| C. | Decrease |
| D. | Increase until it becomes equal to the dew point temperature |
| Answer» D. Increase until it becomes equal to the dew point temperature | |
| 295. |
*/*_Man and biosphere programme is affiliated with? |
| A. | UNESCO |
| B. | IUCN |
| C. | WWF |
| D. | WIPO |
| Answer» B. IUCN | |
| 296. |
*/*_Which of the following is an extinct species?? |
| A. | Tiger |
| B. | Lion |
| C. | Dodo |
| D. | Ostrich |
| Answer» D. Ostrich | |
| 297. |
*/*_The unfavourable alteration of environment due to human activities is termed as? |
| A. | ecological disturbance |
| B. | catastrophe |
| C. | ecological degradation |
| D. | pollution |
| Answer» E. | |
| 298. |
*/*_Which one of the following is the most stable ecosystem?? |
| A. | Forest |
| B. | Mountain |
| C. | Desert |
| D. | Ocean |
| Answer» E. | |
| 299. |
*/*_The one-horned Rhinoceros is now restricted to which state?? |
| A. | Maharashtra |
| B. | Gujarat |
| C. | Assam |
| D. | Uttar Pradesh |
| Answer» D. Uttar Pradesh | |
| 300. |
*/*_In a food chain of grassland ecosystem the top consumers are? |
| A. | Herbivorous |
| B. | Carnivorous |
| C. | Bacteria |
| D. | Either carnivorous or herbivorous |
| Answer» C. Bacteria | |