Quiz-16
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.
I. Open burning
II. Sanitary landfills
III. Rag-pickers and kabadiwallahs
IV. Natural breakdown
V. Recycling
VI. Incineration
Choose the correct option
Methods of Solid Waste Disposal (i) Open Burning Municipal waste is reduced by burning in open dumps but the unburnt waste serve as the breeding ground for rats and flies
(ii) Sanitary Landfills Wastes are dumped in a depression or trench after compaction and covered with dirt. Seepage of chemicals from these landfills can pollute underground water resources
(iii) Rag-pickers and Kabadiwallahs Wastes are collected and separated out into reusable or recyclable categories
(iv) Natural Breakdown The biodegradable materials are kept into deep pits in the ground for natural breakdown
(v) Recycling E-wastes can be recycled in specifically built facilities or manually to recover important metals
(vi) Incineration Majority of e-wastes generated in developed world is exported to developing world where they are incinerated
A-Dirty air, B-Clean air, C-Water line spray, D-Particulate matte
As we travels along the food chain the concentration of DDT increases
Q4. What did Chernobyl, Three Mile Island, the Love Canal and Bhopal, India all have in common?
They were all radioactive disasters
Acid rain is a liquid pollutant, whereas SO2 CO and CO2 are gaseous pollutants.
I. Radiations from nuclear wastes causes mutation at a very high rate
II. At high doses, nuclear radiations are lethal
III. At low doses, radiations cause disorders and cancer
Which of the statements given above are correct?
Radiations from nuclear wastes cause mutations at a very high rate. A high doses, nuclear radiations are lethal. At low doses, radiations cause disorders and cancer. Nuclear waste should be pretreated and stored in shielded containers and then buried about 500 m deep with in rocks
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
Soil pollution is the alteration in soil caused by the removal or addition of substances and factors, which decreases its productivity, quality of plants and ground water
Enhance the need for chemical fertilisers. An ecologically compatible system of disposal of human excreta is the use of dry composting toilets, called ecosave 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
I. Algal blooms are formed by free floating algae
II. Algal bloom causes fish mortality and deterioration of water quality
III. Water hyacinth, the world’s most problematic aquatic weed is also called ‘Terror of Bengal’
Which of the statements given above are correct about algal blooms?
The excess growth of planktonic algae that causes colouration of water is called algal blooms. They are toxic to animals and humans. In some cases, eutrophic water-bodies support excessive growth of floating plants. Water hyacinth (Eichhornia crassipes) also called ‘Terror of Bengal’ is one such plant that sometimes chokes ponds, lakes and rivers resulting in imbalance of ecosystem dynamics of water-bodies
