19.9 Engineering Services 2018 GS Paper Solution Part-9 Presented by PAWAN SAINI
PAWAN SAIN ABOUT ME PAWAN SAINI Oriental Institute Of Science and Technology Bhopal ASSISTANT MANAGER IN RITES (A PSU under Ministry of Railways) Joined in 2013 posted at NTPC Sipat Project Previously Worked at SAlIL Bokaro Love to do Social Service Travelling Teaching Spiritual Activities IRIMEE DLW ICF IRITM TKD GOLDEN ROCK SAIL NTPC CIL BHEL
ESE 2018 GS Paper Solution 63. Consider the following statements regarding depletion of the ozone layer: Excessive release of chlorine and bromine in the environment from man-made compounds, suchas chlorofluorocarbons. 2 and 3 onlv 2.Occurrence ofcertain natural phenomena such as sunspots, and stratospheric winds. 3. Degradation of materials by uitra-violet( 1,2 and4 only radiation. and 4 only Major volcanic eruptions. 4. Which of the above can be categorized as causing ozone depletion? (d) 2,3 and 4 only
Pollution & Degradation ,CC 13. Consider following statement about Ozone and find the correct one; 1. Earth's upper atmosphere ozone plays an important and beneficial role by providinga shield from the sun's ultraviolet rays. Ozone at ground level is a harmful air pollutant. 2 3. Breathing ozone can trigger a variety of health problems including chest pain, coughing, throat irritation, cancer and airway inflammation. a). 1 only b) 1 and 2 c) 1 and 3 d) All
Pollution & Degradation ,CC Ans. b) 1 and 2 o Ozone, a gas, is a form of oxygen. In the Earth's upper atmosphere ozone plays an important and beneficial role by providing a shield from the sun's ultraviolet rays. Ozone at ground level is a harmful air pollutant .Here, ground-level or "bad" ozone is an air lltant that is harmful to breathe and it damages crops, trees and other vegetation
Pollution& Degradation ,CC It is a main ingredient of urban smog. Breathing ozone can trigger a variety of health problems including chesf pain, Coughing, fhroaf irritation, and airway inflammation. It also can reduce lung function and harm lung tissue. Ozone can worsen bronchitis, emphysema, and asthma , leading to increased medical care.
ESE 2018 GS Paper Solution 64. Which one of the following is the major characteristic of deciduous trees? (a) They do not lose their leaves. (b) They shed their leaves annually (c) They synthesize their own food. (d) They depend on other factors for their food.
Ans. b) Monsoon forest, also called dry forest or tropical deciduous forest, open woodland in tropical areas that have a long dry season followed by a season of heavy rainfall. The trees in a monsoon forest Usually shed their leaves during the dry season and come into leaf at the start of the rainy season.
ESE 2018 GS Paper Solution A wall, rectangular in shape, has a perimeter of 72 m. If the length of its diagonal is 18 m, what is the area of the wall? 65. (a 224 m2 (b) 486 m2 (c) 672 m2 (d) 606 m2
ESE 2018 GS Paper Solution ed area for conservatioa 66. To an open traverse is Tn keeping clo outside o the exterior bounda through gro und points A B E F--> G--> located AB is 8O line at D, magnitude of the marked) so that isolate an enclosed to (but of the area rds H (to be eventually B0 to the East of the North ionInterior angles at B. C. D, Vhat would be the deflection angle at G (as GH may run parallel to BA? F are indicated (engths are immnterial in this case.) 90o 6O. G D 80 To H 70 Deflection angle at C 190 210 200 230 CbO
ESE 2018 GS Paper Solution ncreased biological oxygen demand is an indication of 1. Lo 2. Absence of microbial pollution. 3. High level of microbial contamination. Which of the above statements is/are correct ? (a) 1only (b) 2 only (c) 3 only (d) 1, 2 and 3 w microbial contamination.
ESE 2018 GS Paper Solution 69. An association of two organisms of different species for mutual benefit, and where the individuals may not be able to survive separately, is called (a) Commensalism (b) Parasitic (c) Non-symbiotic (d) Symbiotic
Ans. d) Symbiotic relationships are a special type of interaction between species. Sometimes beneficial, sometimes harmful, these relationships are essential to many organisms and ecosystems, and they provide a balance that can only be achieved by working together. Mutualism or interspecies reciprocal altruism is a relationship between individuals of different species where both individuals benefit.
Commensalism describes a relationship between two living organisms where one benefits and the other is not significantly harmed or helped. A parasitic relationship is one in which one member of the association benefits while the other is harmed. Non-symbiotic mutualism: the species do not live together, nor are dependent on each other; the relationship is faculatitive or opportunistic but does profit the organisms when together.
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Manager PSU, Worked @ SAIL, Cleared GATE 2012, 2013, SSC JE, CDS, AFCAT, BARC. Best of luck for ESE Prelims.