Quiz-13
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.
In all Indian metropolitan cities, the major pollutants are carbon dioxide and carbon monoxide.
Human hear can hear a frequency of 500 to 5000 hertz, , sound energy is measured in terms of units called decibel(dB). Sound in our city homes (silent zone) during day time averages 40-50 dB, but street noise average 70-80 dB. Sounds upto 80 dB are considered bearable by man, but higher sound intensity are hazardous, causing nervous stress, irritability, increased blood pressure, etc.
In 1980, the Government of India has introduced the concept of ‘Joint Forest Management (JFM)’ to work closely with the local communities for protecting and managing forests on mutual benefits
Q4. Which of the following is absent in polluted water?
Stone files are exopterygote insects with aquatic nymphs, long antennae, biting mouth parts and weak flight. Adults have the tendency to feed on lichens and unicellular algae. Hence, these are absent in polluted water.
Cleaning of waste water in Arcata marsh involves removal of dissolved heavy metals through biological process
Many of 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 deposited in the fatty tissues of animals and humans. In the food chain, because of their build up, they get magnified at higher trophic level, called biological magnification.
A-Biodegradable; B-Decomposers
Hydroelectric power plants do not cause pollution. The thermal power plants and automobiles cause air pollution. The chief pollutants of thermal power plants are fly ash, SO2, hydrocarbons and other gases while the pollutants of automobiles are CO hydrocarbons, SPM and other gases.
International conference held in Kyoto, Japan obtained commitments from different countries for reducing overall green house gas emission at a level 5% below level by 2012.
A-bitumen; B-Bengaluru.
A fine powder of recycle modified plastic is called polyblend. Polyblend has been mixed with bitumen to lay roads in Bengaluru. Polyblend enhanced bitumen’s water repellant properties and helped to increase the life of road
