Q.13627·Miscellaneous·2013·EasyEcological research over the last quarter of the century has established the deleterious effects of habitat fragmentation due to mining, highways and such other intrusions on forests. When a large block of forests gets fragmented into smaller bits, the edges of all these bits come into contact with human activities resulting in the degradation of the entire forests. Continuity of forested landscapes and corridors gets disrupted affecting several extinction-prone species of wildlife. Habitat fragmentation is therefore considered as the most serious threat to biodiversity conservation. Ad hoc grants of forest lands to mining companies coupled with rampant illegal mining is aggravating this threat. What is the central focus of this passage?View question
Q.13628·Miscellaneous·2013·EasyWhich of the following bodies is/are not mentioned in the Indian Constitution? 1. National Development Council 2. Planning Commission 3. Zonal Councils Select the correct answer using the codes given below.View question
Q.13629·Miscellaneous·2013·EasyExamine the following three figures in which the numbers follow a specific pattern: The missing number (?) in the third figure above isView question
Q.13630·Miscellaneous·2013·EasyIn which of the following States is lion-tailed macaque found in its natural habitat? 1. Tamil Nadu 2. Kerala 3. Karnataka 4. Andhra Pradesh Select the correct answer using the codes given below.View question
Q.13631·Miscellaneous·2013·EasyWhat will follow if a Money Bill is substantially amended by the Rajya Sabha?View question
Q.13632·Miscellaneous·2013·EasyWhich one of the following is the correct sequence of ecosystems in the order of decreasing productivity?View question
Q.13633·Miscellaneous·2013·EasyOut of 120 applications for a post, 70 are male and 80 have a driver’s license. What is the ratio between the minimum to maximum number of males having driver’s license?View question
Q.13634·Miscellaneous·2013·EasyIn a garrison, there was food for 1000 soldiers for one month. After 10 days, 1000 more soldiers joined the garrison. How long would the soldiers be able to carry on with the remaining food?View question
Q.13635·Miscellaneous·2013·EasyA gardener has 1000 plants. He wants to plant them in such a way that the number of rows and the number of columns remains the same. What is the minimum number of plants that he needs more for this purpose?View question
Q.13636·Miscellaneous·2013·EasyThe law in many parts of the world increasingly restricts the discharge of agricultural slurry into watercourses. The simplest and most economically sound practice returns the material to the land as semisolid manure or as sprayed slurry. This dilutes its concentration in the environment to what might have occurred in a more primitive and sustainable type of agriculture and converts pollutant into fertilizer. Soil microorganisms decompose the organic components of sewage and slurry and most of the mineral nutrients become available to be absorbed again by the vegetation. The excess input of nutrients, both nitrogen and phosphorus — based, from agricultural runoff (and human sewage) has caused many ‘healthy’ oligotrophic lakes (low nutrient concentrations, low plant productivity with abundant water weeds, and clear water) to change to eutrophic condition where high nutrient inputs lead to high phytoplankton productivity (sometimes including bloom-forming toxic species). This makes the water turbid, eliminates large plants and, in the worst situations, leads to anoxia and fish kills; so called cultural eutrophication . Thus, important ecosystem services are lost, including the provisioning service of wild-caught fish and the cultural services associated with recreation. The process of cultural eutrophication of lakes has been understood for some time. But only recently did scientists notice huge ‘dead zones’ in the oceans near river outlets, particularly those draining large catchment areas such as the Mississippi in North America and the Yangtze in China. The nutrient-enriched water flows through streams, rivers and lakes, and eventually to the estuary and ocean where the ecological impact may be huge, killing virtually all invertebrates and fish in areas up to 70,000 km² in extent. More than 150 sea areas worldwide are now regularly starved of oxygen as a result of decomposition of algal blooms, fuelled particularly by nitrogen from agricultural runoff of fertilizers and sewage from large cities. Oceanic dead zones are typically associated with industrialized nations and usually lie off countries that subsidize their agriculture, encouraging farmers to increase productivity and use more fertilizer. What is the central theme of this passage?
Q.13637·Miscellaneous·2013·EasyThe tank-full petrol in Arun’s motorcycle lasts for 10 days. If he starts using 25% more everyday, how many days will the tank-full petrol last?View question
Q.13639·Miscellaneous·2013·EasyConsider the following: 1. Electromagnetic radiation 2. Geothermal energy 3. Gravitational force 4. Plate movements 5. Rotation of the earth 6. Revolution of the earth Which of the above are responsible for bringing dynamic changes in the surface of the earth?View question
Q.13640·Miscellaneous·2013·EasyWith reference to the history of Indian rock-cut architecture, consider the following statements: 1). The canvas at Badami are the oldest surviving rock-cut caves in India. 2). The Barabar rock-cut caves were originally made for Ajivikas by Emperor Chandragupta Maurya. 3). At Ellora, caves were made for different faiths. Which of the statements given above is/are correct?View question
Q.13641·Miscellaneous·2013·EasyConsider the following pairs: 1. Nokrek Bio-Sphere Reserve : Garo Hills 2. Logtak (Loktak) Lake : Barail Range 3. Namdapha National Park: Daphla Hills Which of the above pairs is/are correctly matched?View question
Q.13642·Miscellaneous·2013·EasyA person can walk a certain distance and drive back in six hours. He can also walk both ways in 10 hours. How much time will he take to drive both ways?View question
Q.13643·Miscellaneous·2013·EasyA thief running at 8 km/hr is chased by a policeman whose speed is 10 km/hr. If the thief is 100 m ahead of the policeman, then the time required for the policeman to catch the thief will be:View question
Q.13644·Miscellaneous·2013·EasyThe law in many parts of the world increasingly restricts the discharge of agricultural slurry into watercourses. The simplest and most economically sound practice returns the material to the land as semisolid manure or as sprayed slurry. This dilutes its concentration in the environment to what might have occurred in a more primitive and sustainable type of agriculture and converts pollutant into fertilizer. Soil microorganisms decompose the organic components of sewage and slurry and most of the mineral nutrients become available to be absorbed again by the vegetation. The excess input of nutrients, both nitrogen and phosphorus — based, from agricultural runoff (and human sewage) has caused many ‘healthy’ oligotrophic lakes (low nutrient concentrations, low plant productivity with abundant water weeds, and clear water) to change to eutrophic condition where high nutrient inputs lead to high phytoplankton productivity (sometimes including bloom-forming toxic species). This makes the water turbid, eliminates large plants and, in the worst situations, leads to anoxia and fish kills; so called cultural eutrophication . Thus, important ecosystem services are lost, including the provisioning service of wild-caught fish and the cultural services associated with recreation. The process of cultural eutrophication of lakes has been understood for some time. But only recently did scientists notice huge ‘dead zones’ in the oceans near river outlets, particularly those draining large catchment areas such as the Mississippi in North America and the Yangtze in China. The nutrient-enriched water flows through streams, rivers and lakes, and eventually to the estuary and ocean where the ecological impact may be huge, killing virtually all invertebrates and fish in areas up to 70,000 km² in extent. More than 150 sea areas worldwide are now regularly starved of oxygen as a result of decomposition of algal blooms, fuelled particularly by nitrogen from agricultural runoff of fertilizers and sewage from large cities. Oceanic dead zones are typically associated with industrialized nations and usually lie off countries that subsidize their agriculture, encouraging farmers to increase productivity and use more fertilizer. What is/are the characteristics of a water body with cultural eutrophication? 1. Loss of ecosystem services 2. Loss of flora and fauna 3. Loss of mineral nutrients Select the correct answer using the code given below: