Environmental issuesQUIZ-4

Dear Readers,

NEET is the most famous and important medical entrance examination held in our country. This exam is an objective type, an offline test which includes 4 sections namely– Physics, Chemistry, Botany, and Zoology. The maximum marks that can be scored are 720 marks and have 180 questions.
About half of the paper consists of questions from Biology, as the NEET exam essentially focuses on capacitating students to go for seats in medical courses. One of the most significant and crucial sections in the NEET exam is of Biology. It comprises of theories, descriptions, discoveries, diagrams, definitions, explanations of differences, and relations. The majority of the topics covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12 and other related sources become part of the rest of the syllabus.
Clear Exam curates a list of articles selected by professionals who recommend the highly vital topics for NEET exams. The table below takes you directly to the respective topic where the in-depth article and the MCQs are available for an easy and productive learning experience. Prior to solving NEET question papers or practicing mock tests, you must ensure to study the basic concepts in NEET and practice a few sample questions related to this exam. Students will be covered for all their studies as the topics are available from basics to even the most advanced. 

Q1. Which of the following statement is not correct?
  •  Ozone layer do not allow UV-B to reach the earth surface
  •  Ozone hole is an actual hole over Antarctica
  •  Halons are ozone depleting substances
  •  The active chlorine destroys ozone and convent it into O_2
Ozone hole is not an actual hole but an area of extreme reduction in ozone concentration in the ozone layer in stratosphere.

Q2.Decibel (dB) is a standard abbreviation used for the quantitative expression of
  •  The density of bacteria in a medium
  •  A particular pollutant
  •  The dominant Bacillus in a culture
  •  A certain pesticide
oise pollution is a physical form of pollution that affects the receiver directly. dB (decibel) is a standard abbreviation used for the quantitative expression of noise.

Q3.  Acid rain is due to
  •   CO_2 and H_2 O
  •  CO_2 and NO_2
  •  SO_2 and NO_2
  •  SO_2 and N_2 O
Acid rain is result of SO_2 and NO_2 pollution in atmosphere, SO_2 causes formation of H_2 SO_4and NO_2 causes formation of HNO_3.Both are strong acids.

Q4. CFCs are responsible for
  •  Ozone layer depletion
  •  Global warming
  •  Acid rain
  •  None of these
CFC_s(Chlorofluorocarbons) are mainly responsible for ozone layer depletion. CFC_s are used as cooling materials in refrigerators and air conditioners, propel aerosol sprays, etc. UV ray breaks CFCmolecules and release chlorine molecules, which reduce the ozone content in the atmosphere. One chlorine free radical is sufficient to destroy a lac of ozone molecules.

Q5.Domestic sewage contains nutrients like nitrogen and phosphorus which favours the excessive growth of planktonic(free floating) alage which can accelerate which of the following phenomenon?
  •  Algal bloom
  •  Biomagnification
  •  Eutrophication
  •  Both (a) and (c)
 Eutrophication is the phenomenon of nutrient enrichment of a water body that initially support a dense growth of plants and animal life Extensive increase of these algae is called water bloom. In many cases blooms are formed by blue-green algae. They are toxic to animals and humans

Q6. Air pollutants I. cause injury to all living organism II. reduce growth and yield of crops and causes premature death of plants III. affects the respiratory system of humans and animals Which of the statements given above are correct?
  •  I and II
  •  I and III
  •  II and III
  •  I, II and III
Air pollution has several effects on all living organism and on climate. Diseases like bronchitis, lung cancer and emphysema are caused by air pollution (i) NO_2 causes bronchitis and lowers the resistance to influenza (ii) SO_2 obstructs breathing and irritates eyes (iii) Nitric acid, nitrous acid and sulphuric acid causes respiratory diseases Air pollutants reduce growth and yield of crops and cause premature death of plants

Q7.Checking of re-radiating heat by atmospheric dust O_3,CO_2and water vapours is
  •  Green house effect
  •  Solar effect
  •  Ozone layer effect
  •  Radioactive effect
The main gases responsible for green house effect are CO_2,CH_4,CFCs,O_3,etc.

Q8.Cigarette smoking causes
  •  Skin cancer
  •  Blood cancer
  •  Bone cancer
  •  Lung cancer
Carcinogen Cancer tissue Cigarette smoke - lungs Soot, coal tar - Skin Leukamemia is blood cancer resulted due to unchecked proliferation of White Blood Cells(WBCs).

Q9.Which of the following are advantages of ecological sanitation? I. It is a practical, hygienic and efficient method of waste disposal II. It is cost effective III. Human excreta can be recycled into natural fertilisers, to replace chemical fertilisers
  •  I and II
  •  I and III
  •  II and III
  •  I, II and III
An ecologically compatible system of disposal of human excreta is the use of dry composting toilets called ecosan toilets. No water is required. Human excreta is converted into a resource as it forms natural fertilizer. Ecosan toilets are already working in many parts of Kerala and Sri Lanka

Q10. Global agreement in specific control strategies to reduce the release of ozone depleting substances, was adopted by
  •  Rio de Janerio conference
  •  Montreal protocol
  •  Kyoto Protocol
  •  Vienna Convention
The Montreal protocol on substances that deplete the ozone layer is a landmark international agreement designed to protect the stratospheric ozone layer. The treaty was originally signed in 1987 (effected in 1989) and substantially amended in 1990 and 1992. The Montreal protocol stipulates that the production and consumption of compounds that deplete ozone in the stratosphere-chlorofluorocarbons (CFC_s), halons, carbon tetrachloride and methyl chloroform-are to be phased out by 2000(2005 for methyl chloroform).

author image

Written by: AUTHORNAME


Want to know more

Please fill in the details below:


Latest IITJEE Articles$type=three$c=3$author=hide$comment=hide$rm=hide$date=hide$snippet=hide

Latest NEET Articles$type=three$c=3$author=hide$comment=hide$rm=hide$date=hide$snippet=hide


Admissions,1,Alternating Current,60,AP EAMCET 2020,1,Basic Maths,2,BCECE 2020,1,best books for iit jee,2,best coaching institute for iit,1,best coaching institute for iit jee preparation,1,best iit jee coaching delhi,1,best iit jee coaching in delhi,2,best study material for iit jee,4,BITSAT Registration 2020,1,Blog,62,books for jee preparation,1,books recommended by iit toppers,3,Capacitance,3,CBSE,1,CBSE accounts exam,1,CBSE boards,1,CBSE NEET,9,cbse neet 2019,3,CBSE NEET 2020,1,cbse neet nic,1,Centre of Mass,2,Chemistry,58,Class 12 Physics,15,coaching for jee advanced,1,coaching institute for iit jee,2,Collision,2,COMEDK UGET 2020 Application Form,1,COMEDK UGET 2020 Exam Form,1,COMEDK UGET news,1,CUCET 2020,2,Current Electricity,4,CVR college,1,Digestion and Absorption Notes PDF,1,Electromagnetic Induction,3,Electronics,1,Electrostatics,3,Energy,1,Engineering & Medical,1,Fluid Mechanics,4,Gravitation,2,GUJCET 2020 Application Form,1,Heat,4,iit admission,1,iit advanced,1,iit coaching centre,3,iit coaching centre in delhi,2,iit coaching classes,2,iit coaching in delhi,1,iit coaching institute in delhi,1,iit entrance exam,1,iit entrance exam syllabus,2,iit exam pattern,2,iit jee,5,iit jee 2019,3,iit jee advanced,2,iit jee books,3,iit jee coaching,2,iit jee exam,3,iit jee exam 2019,1,iit jee exam pattern,3,iit jee institute,1,iit jee main 2019,2,iit jee mains,3,iit jee mains syllabus,2,iit jee material,1,iit jee online test,3,iit jee practice test,3,iit jee preparation,6,iit jee preparation in delhi,2,iit jee preparation time,1,iit jee preparation tips by toppers,2,iit jee question paper,1,iit jee study material,3,iit jee study materials,2,iit jee syllabus,2,iit jee syllabus 2019,2,iit jee test,3,iit preparation,2,iit preparation books,5,iit preparation time table,2,iit preparation tips,2,iit syllabus,2,iit test series,3,IITJEE,100,Important Biology Notes for NEET Preparation,1,IPU CET,1,JEE Advanced,83,jee advanced exam,2,jee advanced exam pattern,1,jee advanced paper,1,JEE Books,1,JEE Coaching Delhi,3,jee exam,3,jee exam 2019,6,JEE Exam Pattern,2,jee exam pattern 2019,1,jee exam preparation,1,JEE Main,85,jee main 2019,4,JEE Main 2020,1,JEE Main 2020 Application Form,2,JEE Main 2020 news,2,JEE Main 2020 Official Answer Key,1,JEE Main 2020 Registration,1,JEE Main 2020 Score,1,JEE Main application form,1,jee main coaching,1,JEE Main eligibility criteria,3,jee main exam,1,jee main exam 2019,3,jee main online question paper,1,jee main online test,3,JEE Main Paper-2 Result,1,jee main registration,2,jee main syllabus,2,JEE mains 2020,1,jee mains question bank,1,jee mains test papers,3,JEE Mock Test,2,jee notes,1,jee past papers,1,JEE Preparation,2,jee preparation in delhi,1,jee preparation material,4,JEE Study Material,1,jee syllabus,6,JEE Syllabus Chemistry,1,JEE Syllabus Maths,1,JEE Syllabus Physics,1,jee test series,3,KCET - 2020,1,Kinematics,1,Latest article,5,Latest Articles,61,Latest News,34,latest news about neet exam,1,Laws of Motion,2,Magnetic Effect of Current,3,Magnetism,3,MHT CET 2020,2,MHT CET 2020 exam schedule,1,Modern Physics,1,NCERT Solutions,15,neet,3,neet 2019,1,neet 2019 eligibility criteria,1,neet 2019 exam date,2,neet 2019 test series,2,NEET 2020,2,NEET 2020 Application Form,1,NEET 2020 Eligibility Criteria,1,NEET 2020 Registration,1,neet application form,1,neet application form 2019 last date,1,Neet Biology Syllabus,1,Neet Books,3,neet eligibility criteria,3,neet exam 2019,7,neet exam application,1,neet exam date,1,neet exam details,1,neet exam pattern,6,neet exam pattern 2019,2,neet examination,1,neet mock test 2019,1,Neet Notes,3,Neet Online Application Form,3,neet online test,2,neet past papers,1,neet physics syllabus,1,neet practice test,2,NEET preparation books,1,neet qualification marks,1,NEET question paper 2019,1,neet question papers,1,neet registration,1,Neet Study Material,3,neet syllabus,6,neet syllabus 2019,5,NEET Syllabus 2020,1,neet syllabus chemistry,1,neet syllabus for biology,1,neet syllabus for physics,1,neet test series,1,neet ug 2019,2,news,5,online study material for iit jee,1,Optical Instruments,1,Physics,110,physics books for iit jee,1,Power,1,Practical Physics,1,Quiz,5,Ray Optics,1,Rotational Motion,3,SHM,3,Simple Harmonic Motion,3,study materials for iit jee,1,Study Notes,110,study notes for iit jee,1,Thermodynamics,4,TS EAMCET Notification,2,Units and Dimensions,1,UPSEE 2020,1,UPSEE 2020 Application Form,2,UPSEE EXAM,1,Vectors,2,VITEE Application form,1,Wave Motion,3,Wave Optics,1,WBJEE 2020 Admit Card,1,WBJEE 2020 Answer Key,1,Work,1,
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS CONTENT IS PREMIUM Please share to unlock Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy