

InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
251. |
According to Wein's displacement law, the wavelength at which maximum radiation occurs |
Answer» Is inversely PROPORTIONAL to the TEMPERATURE According to Wein's displacement LAW, the wavelength at which maximum RADIATION occurs is inversely proportional to the temperature. |
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252. |
Radiations are harmful as it |
Answer» causes SKIN cancer Radiation POISONING happens when a radioactive SUBSTANCE gives off particles that get into a person's body and cause harm. Different radioactive SUBSTANCES have different characteristics. They can harm and help PEOPLE in different ways, and some are more dangerous than others. |
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253. |
Water vapour is: |
Answer» A gas Water vapour, water vapour or aqueous vapour is the gaseous phase of water. It is one state of water WITHIN the hydrosphere. Water vapour can be produced from the evaporation or boiling of LIQUID water or from the sublimation of ice. Unlike other forms of water, water vapour is invisible. Under typical atmospheric conditions, water vapour is CONTINUOUSLY GENERATED by evaporation and removed by condensation. It is less dense than air and triggers CONVECTION currents that can lead to clouds. |
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254. |
The movement "Pani Panjayath" was initiated to conserve waters in the drought prone areas of _______state. |
Answer» Maharashtra The movement "PANI Panjayath" was initiated to CONSERVE waters in the drought prone AREAS of Maharashtra STATE. |
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255. |
The most important human activity, leading to the extinction of wildlife, is |
Answer» Alternation and destruction of the NATURAL habitats Habitat loss and fragmentation is the most important cause DRIVING ANIMALS and PLANTS to extinction. |
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256. |
The order of basic processes involved in succession is |
Answer» Nudation->INVASION-> COMPETITION and co action->reaction>STABILIZATION Nudation->Invasion-> competition and co action->reaction>stabilization |
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257. |
Environmental education should be in _______ approach. |
Answer» Environmental EDUCATION should be in interdisciplinary APPROACH. |
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258. |
_________ layer is very near to earth |
Answer» Troposphere Troposphere—the layer closest to EARTH's SURFACE in which all WEATHER OCCURS. |
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259. |
How do red and blue light differ? |
Answer» The wavelength of red light is LONGER. Red light has a slightly longer wavelength than blue light. Red light (at ONE END of the VISIBLE spectrum) has a longer wavelength than blue light. |
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260. |
Perspiration cools the body by |
Answer» LATENT heat transfer Perspiration cools the body by latent heat transfer. Sweat helps cool you down by releasing moisture onto your SKIN. But that's not all that's going on. On a HOT day, your sweat EVAPORATES from your skin taking a little bit of your body heat with it. |
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261. |
If the average temperature of the sun increased, the wavelength of peak solar emission would: |
Answer» If the average temperature of the sun INCREASED, the wavelength of PEAK solar EMISSION would decrease. |
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262. |
Chipko movement is a public agitation that occurred in |
Answer» Tehri Garhwal area of Uttar Pradesh The Chipko movement or Chipko Andolan, was a FOREST conservation movement in India. It began in 1970s in Uttarakhand, then a part of Uttar Pradesh (at the FOOTHILLS of Himalayas) and went on to become a rallying point for MANY FUTURE environmental movements all over the world. |
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263. |
The most important reason for decrease in biodiversity is |
Answer» Habitat destruction The main cause of the LOSS of biodiversity can be attributed to the INFLUENCE of human beings on the world’s ECOSYSTEM, In fact human beings have deeply altered the ENVIRONMENT, and have modified the territory, exploiting the species directly, for example by fishing and hunting, changing the biogeochemical cycles and transferring species from one area to another of the PLANET. |
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264. |
Charged particles from the sun that travel through space at high speeds are called: |
Answer» Solar WIND The solar wind is a stream of charged PARTICLES RELEASED from the upper atmosphere of the SUN, CALLED the corona. |
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265. |
Habitat loss and fragmentation, over exploitation, alien species invasion and co extinction are causes for |
Answer» BIODIVERSITY loss Biodiversity loss leads to the EXTINCTION of species. Factors such as habitat loss and fragmentation, over-exploitation, alien species invasion and co-extinction are causes for such losses. When there are no more individuals of a species (plant or animal) alive anywhere in the WORLD, the species is SAID to be extinct. |
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266. |
Soil chemistry is considered an __________ factor |
Answer» Soil CHEMISTRY is CONSIDERED an edaphic FACTOR. |
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267. |
The outermost zone of a biosphere reserve is |
Answer» The outermost zone of a biosphere reserve is manipulation zone. The transition area is the outermost part of a biosphere reserve. This is usually not delimited ONE and is a zone of COOPERATION where conservation knowledge and management skills are APPLIED and uses are managed in harmony with the purpose of the biosphere reserve. |
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268. |
The complex network of interconnected food chains is called ___________ |
Answer» Food web A NETWORK of food CHAINS existing together in an ECOSYSTEM is KNOWN as food web. |
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269. |
Water pollution is due to |
Answer» all of the above All of the above |
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270. |
BOD of a river water is found very high. This means water |
Answer» is HIGHLY polluted BOD (Biological Oxygen Demand or Biochemical Oxygen Demand) is the amount of DISSOLVED oxygen, expressed in milligrams of oxygen per litre of WATER, CONSUMED by micro-organisms to decompose the organic matter present in water. |
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271. |
Species that occur in different geographical regions separated by special barrier are: |
Answer» Allopatric Allopatric is the SPECIES that occur in different geographical REGIONS SEPARATED by special barriers. |
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272. |
The ratio of the mass of water vapour in a given volume (parcel) of air to the mass of the remaining dry air describes the: |
Answer» MIXING ratio The ratio of the MASS of WATER VAPOUR in a given volume (parcel) of AIR to the mass of the remaining dry air describes the mixing ratio. |
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273. |
_________ is the study that deals with the interaction of organisms with their environment. |
Answer» Ecology Ecology is the SCIENTIFIC STUDY of the INTERACTION of ORGANISMS with each other and the ENVIRONMENT. |
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274. |
Which of the following is a nonrenewable energy resource? |
Answer» Coal Most non-renewable energy sources are fossil fuels: coal, petroleum, and natural gas. Carbon is the MAIN element in fossil fuels. For this REASON, the time PERIOD that fossil fuels formed (about 360-300 MILLION YEARS ago) is called the Carboniferous Period. |
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275. |
The albedo of the earth's surface is only about 4%, yet the combined albedo of the earth and the atmosphere is about 30%. Which set of conditions below best explains why this is so? |
Answer» High albedo of CLOUDS, low albedo of WATER High albedo of clouds, low albedo of water is the set of conditions below BEST EXPLAINS why this is so. |
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276. |
The time of day when the relative humidity reaches a maximum value is usually |
Answer» At the TIME when the air temperature is lowest The relative humidity is usually highest around sunrise when the overnight low temperature is frequently close to the dew POINT. The humidity drops during the DAY as the temperature rises and usually reaches its lowest VALUE in the middle or late afternoon when the day's MAXIMUM temperature is recorded |
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277. |
Which of the following group of gases cause photochemical smog? |
Answer» O3, PAN and NO2 O3, PAN and NO2 cause PHOTOCHEMICAL smog. |
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278. |
Light energy is transformed into chemical energy by |
Answer» Photosynthesis During the process of photosynthesis, light penetrates the CELL and PASSES into the chloroplast. The light energy is intercepted by CHLOROPHYLL MOLECULES on the granal stacks. Some of the light energy is converted to chemical energy. During this process, a phosphate is added to a MOLECULE to cause the formation of ATP. |
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279. |
Which of the following is not an indicative biological trait for the trait of ecology? |
Answer» Fish REPRODUCTIVE STRATEGY Fish reproductive strategy is not an indicative BIOLOGICAL TRAIT for the trait of ECOLOGY. |
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280. |
Energy flow in ecosystem is |
Answer» |
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281. |
_________ mixed with diesel reduces carbon monoxide emissions up to 50%. |
Answer» Ethanol Ethanol MIXED with DIESEL reduces CARBON MONOXIDE EMISSIONS up to 50%. |
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282. |
_________ is the element used to produce nuclear energy |
Answer» Uranium Uranium is the fuel most widely USED to produce nuclear energy. That's because uranium ATOMS split apart relatively easily. Uranium is also a very common ELEMENT, found in ROCKS all over the world. |
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283. |
Energy resources derived from natural organic materials are called |
Answer» FOSSIL fuels Energy RESOURCES DERIVED from NATURAL organic MATERIALS are called fossil fuels. |
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284. |
An association between two individuals or populations where both are benefitted and where neither can survive without the other is |
Answer» An association between TWO INDIVIDUALS or POPULATIONS where both are benefitted and where neither can survive WITHOUT the other is mutualism. |
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285. |
The one-horned Rhinoceros is now restricted to which state? |
Answer» Assam Today this survivor from the prehistoric times is FOUND only in pockets in the north EASTERN state of Assam and in NEPAL. In Assam, their RHINO habitat is limited to just two national parks - Kaziranga and Manas. |
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286. |
The average temperature of the earth is about __________ degree F. |
Answer» 59 GISS data show GLOBAL AVERAGE temperatures in 2017 rose 1.62 degrees FAHRENHEIT (0.9 degrees Celsius) above the 1951-1980 MEAN. According to GISS, the global mean surface air temperature for that period was estimated to be 57 F (14 C). That would put the planet's average surface temperature in 2017 at 58.62 F (14.9 C). |
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287. |
The biosphere encompasses the total __________ of living material in a region or the globe. |
Answer» The BIOSPHERE encompasses the total weight of LIVING material in a region or the globe. |
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288. |
Which among the following is related to the word Mesoderm ? |
Answer» Forms blood and bone (LEADS to COMPLEX INTERNAL ORGANS) Forms blood and bone (leads to complex internal organs). |
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289. |
In a volume of air near the earth's surface, ____ occupies 78 percent and ____ nearly 21 percent. |
Answer» Nitrogen, oxygen In a volume of AIR near the earth's surface, nitrogen OCCUPIES 78 percent and oxygen NEARLY 21 percent. |
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290. |
All are insitu conservation efforts except |
Answer» All are INSITU CONSERVATION EFFORTS EXCEPT zoo. |
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291. |
Which of the following can be used as a method of protecting an orchard from damaging low temperatures during a radiation inversion? |
Answer» All of the above All of the above |
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292. |
The components of LPG are _____________ |
Answer» Propane & Butane Liquefied Petroleum Gas or LPG (also called Autogas) consists mainly of propane, propylene, butane, and butylene in various mixtures. It is produced as a by-product of NATURAL gas PROCESSING and petroleum refining. The COMPONENTS of LPG are gases at normal temperatures and pressures. |
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293. |
The sun emits a maximum amount of radiation at wavelengths near ____, while the earth emits maximum radiation near wavelengths of ____. |
Answer» 0.5 micrometers, 10 micrometers The sun emits a MAXIMUM AMOUNT of radiation at WAVELENGTHS near 0.5 micrometers, while the earth emits maximum radiation near wavelengths of 10 micrometers. |
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294. |
_________ is an important factor that aggravates the effect of drought. |
Answer» Deforestation Deforestation is an IMPORTANT FACTOR that AGGRAVATES the EFFECT of DROUGHT. |
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295. |
Organisms which are predominantly found living on, in or near bed sediments of rivers or lakes are known as |
Answer» benthic Because light is absorbed before it can REACH deep ocean-water, the energy source for deep benthic ECOSYSTEMS is often ORGANIC matter from higher up in the water column that DRIFTS down to the depths. |
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296. |
Temperate forests occur in India in |
Answer» Himalayas In India, these FORESTS are DISTRIBUTED between 1700-3000 meter ALTITUDE in the Himalayas. |
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297. |
An example of an abiotic component |
Answer» Soil Soil is often considered an abiotic factor since it is mostly made up of small particles of ROCK (sand and clay) mixed with decomposed plants and animals. Plants use their roots to GET water and NUTRIENTS from the soil. |
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298. |
In the stratosphere, the air temperature normally: |
Answer» Increases with INCREASING height Within the stratosphere temperatures increase with ALTITUDE (SEE temperature inversion); the top of the stratosphere has a temperature of about 270 K (−3°C or 26.6°F). |
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299. |
As it travels along the food chain, the concentration of DDT |
Answer» increases As it TRAVELS along the food chain, the concentration of DDT increases. |
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300. |
________ is the degradation of land in arid, semi-arid and dry sub-humid areas. |
Answer» It STATES that desertification MEANS “land degradation in arid, semi-arid and dry sub-humid areas resulting from various factors, INCLUDING climatic variations and human activities”. |
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