9394949438

[LATEST]$type=sticky$show=home$rm=0$va=0$count=4$va=0






ENVIRONMENTAL ISSUES QUIZ-9

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. World environment day is celebrated on
  •  1st February
  •  8th March
  •  6th December
  •  5th June
Solution
World environment day is celebrated on 5th june.

Q2.Foul smell in the water bodies of tanks,ponds etc,is due to
  •  Aerobiosis
  •  Anaerobiosis
  •  Psammophytes
  •  Biological magnification
Solution
Entrophication is natural state in many lakes and ponds, which have a rich supply of nutrients, this leads to decomposition of nutrients through bacteria and other decomposers by the process of anaerobic respiration. This causes foul smell.

Q3.  The phenomenon by which certain pollutants (e.g., DDT, Mercury) accumulates in the body tissues in increasing concentration is called
  •   Biological degradation
  •  Biological magnification
  •  Eutrophication
  •  Bioprecipitation
Solution
Many pesticides, such as DDT, aldrin and dieldrin, have a long life time in the environment. They are fat soluble and generally non-biodegradable. They get incorporated into the food chain and ultimately gets deposited in the fatty tissues of animals and humans In the food chain, because of their build up, they get magnified in the higher trophic levels called biological magnification. The phenomenon of biological magnification is also reported for certain other pollutants, such as heavy metals like lead, mercury and copper and radioactive substances as strontium-90

Q4. Most hazardous metal pollutant of automobile exhaust is
  •  Cadmium
  •  Lead
  •  Mercury
  •  Copper
Solution
Automobiles burn petroleum inefficiently causing 80% of air pollution and 75% of noise pollution. Automobile exhausts consists of hydrocarbon (13.7%), carbon monoxide (77.2%), nitrogen oxides (7.7%), sulphur oxides, ammonia, aldehydes and lead (90% of total lead poisoning). Lead is present in the form of Pb (CH_3 )_4and (C_2 H_5 )_4as anti-knock agent in automobiles exhaust. It interferes with oxygen and glucose metabolism, haeme synthesis and damages the vital organs of body.

Q5.High amount of Escherichia coil in water indicates
  •  Hardness of water
  •  Industrial pollution
  •  Swage polltion
  •  Pollution due to electromagnetic radiation
Solution
 The presence of E. coli bacteria indicates possible sewage contamination of water because E. coli is found only in the mammalian intestinal tract including that of humans. E. coli bacteria belong to the coliform bacteria group. Coliforms found in mammals are called faecal coliforms. Most coliforms are E. coli. So, E. coli tests are used as indicator of faecal coliforms

Q6. Slash and burn agriculture is called
  •  Ley farming
  •  Commercial agriculture
  •  Jhum cultivation (shifting cultivation)
  •  All of the above
Solution
Slash and burn farming is a form of shifting agriculture where the natural vegetation is cut down and burned as a method of clearing the land for cultivation and then, when the plot becomes infertile, the farmer moves to a new fresh plot and does the same again. This process is repeated over and over

Q7.Forests in india, according to Central Forestry commission(1980) are about
  •  19.4%
  •  18.3%
  •  30%
  •  14.0%
Solution
Forests in India according to central Forestry commission (1980) are about 19.4%

Q8.Kyoto protocol has specified the commitments of different countries
  •  To mitigate climate changes
  •  Limit production of chlorofluorocarbons
  •  To prepare a world climate programme
  •  None of the above
Solution
Kyoto protocol has specified the commitments of different countries to mitigate climate changes.

Q9.Soil erosion can be prevented by
  •  Increasing bird population
  •  Afforestration
  •  Removal of vegetation
  •  Overgrazing
Solution
Afforestation is the process of establishing a forest on land that is not a forest or has not been a forest for a long time by planting trees or their seeds Soil erosion occurs when the soil is blown away by the wind or washed away by the rain. Roots of trees/plants hold the soil. Thus, when more trees are planted their roots don’t allow the soil to be blown or washed away and prevent soil erosion


Q10. Which of the following statement is correct about DDt?
  •  It is a biomagnifying biodegradable pollutant
  •  It is non-biomagnifying biodegradable pollutant
  •  It is biomagnifying non-biodegradable pollutant
  •  It is not a pollutant
Solution
DDT has been recently banned because it is non-biodegradable and biomagnifying pollutant. Biomagnifications means the increase in amount of DDT in the body of organism alongwith the trophic level. Hence, the amount of DDT in first trophic level will be minimum and in top consumer will be maximum.

Want to know more

Want to Know More
Please fill in the details below:

INNER POST ADS

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

Name

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,Electromagnetic Induction,3,Electronics,1,Electrostatics,3,Energy,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,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,
ltr
item
BEST NEET COACHING CENTER | BEST IIT JEE COACHING INSTITUTE | BEST NEET, IIT JEE COACHING INSTITUTE: ENVIRONMENTAL ISSUES QUIZ -9
ENVIRONMENTAL ISSUES QUIZ -9
https://1.bp.blogspot.com/-SzU9xKZ0g1Q/X7Aka_BVnxI/AAAAAAAANvY/Nf61_YgZmfoWwwZ3-3PZtA3_roKVltN4wCLcBGAsYHQ/w640-h336/Quiz%2BImage%2B20%2B%25288%2529.jpg
https://1.bp.blogspot.com/-SzU9xKZ0g1Q/X7Aka_BVnxI/AAAAAAAANvY/Nf61_YgZmfoWwwZ3-3PZtA3_roKVltN4wCLcBGAsYHQ/s72-w640-c-h336/Quiz%2BImage%2B20%2B%25288%2529.jpg
BEST NEET COACHING CENTER | BEST IIT JEE COACHING INSTITUTE | BEST NEET, IIT JEE COACHING INSTITUTE
https://www.cleariitmedical.com/2020/11/environmental%20issues%20quiz%209.html
https://www.cleariitmedical.com/
https://www.cleariitmedical.com/
https://www.cleariitmedical.com/2020/11/environmental%20issues%20quiz%209.html
true
7783647550433378923
UTF-8
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