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 diseases is related to cadmium pollution?
  •  Minamata
  •  Pneumoconiosis
  •  Anameia
  •  Itai-itai
Itai-itai(ouch-ouch disease) is caused by cadmium.

Q2.Limit of BOD prescribed by Central Pollution Control Board for the discharge of industrial and municipal waste water into natural surface water, is
  •  < 3.0 ppm
  •  < 10 ppm
  •  < 100 ppm
  •  < 30 ppm
The central pollution conrol boardprescibed te BOD limit for the discharge of industrial and municipal waste water as < 10 ppm.

Q3.  CO_2,CH_4,N_2 O and CFCs are called green house gases, because they can absorb
  •   Ultraviolet radiation
  •  Long wave infra-red radiation
  •  visible light radiation
  •  X-rays radiation
Green house gases are those gases, which are transparent to solar radiations but retain and partially reflect back long wave heat radiations, i.e., infra red radiations. The various green house gases are CO_2,CH_4,CFCs,N_2 O,O_3 and water vapours.Green house gases are those gases, which are transparent to solar radiations but retain and partially reflect back long wave heat radiations, i.e., infra red radiations. The various green house gases are CO_2,CH_4,CFCs,N_2 O,O_3 and water vapours.

Q4. Removal of forest areas to fulfill the needs of growing human population is called
  •  Deforestration
  •  Reforestration
  •  Depletionnof forest
  •  Afforestration
Population growth possesses serious threat to the forest. The forest are the basis needs of everyday life as they provide us food, shelter and raw material for other essentialities but these forests are deforested for fulfilling the increasing demands of overpopulation like clearing of forests for agriculture, industries, urban area, etc.

Q5.The Montreal protocal refers to
  •  Persistent organic pollutants
  •  Global warming and climate change
  •  Substances that deplete the ozone layer
  •  Biosafety of genetically modified organisms
 Montreal protocol refers to the substances such as CFCs, (chlorofluorocarbons), methane that deplete the ozone layer.

Q6. According to the Central Pollution Control Board (CPCB), particles that are responsible for causing great harm to human health are of diameter
  •  2.50 micrometers
  •  5.00 micrometers
  •  10.00 micrometers
  •  7.5 micrometers
According to Central Pollution Control Board (CPCB), particulates size 2.5 micrometers or less in diameter (PM 2.5) are responsible for causing the greatest harm to human health. These fine particulates can be inhaled deep into the lungs and can cause breathing and respiratory symptoms, irritation inflammations and damage to the lungs and premature deaths. Failure of testosterone secretion causes eunuchoidism

Q7.Which form of UV-radiation is allowed to pass through ozone and reach the earth surface?
  •  UV-A
  •  UV-B
  •  UV-C
  •  None of these
UV-A is the least harmful form of UV-radiation having wavelength 320-390 nm. They are allowed to reach the earth surface

Q8.Solid waste can be
  •  Biodegradable
  •  Non-biodegradable
  •  Both(a) and (b)
  •  None of these
Solid waste can be biodegradable,recylable or non-biodegradable. Solid wastes are discarded solid materials which are produced due to various human activities. Solid wastes can be biodegradable, recyclable or non-biodegradable Solid wastes can be of the following types (i) Municipal Solid Waste Wastes from homes, offices, schools, hospitals etc. (ii) Industrial Wastes The wastes like scraps, flyash, etc., generated by industries (iii) Hospital Wastes Hazardous wastes containing disinfectants and other harmful chemicals generated by hospitals (iv) Electronic Wastes These are the damaged electronic goods and irreparable computers

Q9.SO_2 pollution is indicated by
  •  Desmodium (grasses)
  •  Sphagnum (mosses)
  •  Usnea (lichens)
  •  Cucurbita (climbers)
Lichens (Usnea) are the indicator of air pollution, as these are very sensitive to air pollution (particularly SO_2pollution).

Q10. The ultraviolet radiations in the stratosphere are absorbed by
  •  O_3
  •  O_2
  •  CO_2
  •  H_2SO_4
Ozone layer is confined to the stratosphere. It is formed when sunlight reacts with O_2molecules. The ozone protects the earth from harmful UV-rays by absorbing them.

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