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12th ncert - Radioactive wastes And Greenhouse Effect
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This course includes radioactive wastes and greenhouse effect in simple language and in an easy way. It mainly concentrates on beginners to get them with their basics. It also aims to generate interest among the viewers on the topic and also learning with fun.

Pillai Sruthi P Kumar
Pursuing MSc (botany, Cytogenetics), Mumbai University. Youtuber#sruthipillai. Work as a Biofaculty @MtEducare (reputed institute) Mumbai

U
Unacademy user
Till now not heard any educator with such energy, and good methods of giving intro directly create a image when we hear de words later.
Thank you so much for your kind words.... please dorate it of it helps u...as it eill pay my efforts😊
Ma'am, water vapour present in the air is also responsible for green house effect?
Hello Amit😄 Yes... water vapour, carbon dioxide, nitrous oxide, methane and ozone are primary green house gases... hope it helped you 😄😃
Amit Kumar
a year ago
but mam if it is so ... then why there is cooler weather after rain?
Because rain is a process of condensation...where in water vapour which is warm and in gaseous form condenses and cools and converts in to rain...so all the gases are condensed and turns in to liquid form.. in fact if u see rain is to cool the environment na... so when the amount of green houses increases temperature gets increased as a result of which we have rains to stabilise the environment... hope it cleared now...if u have any other doubts...I am always there to clarify Amit 😄
Amit Kumar
a year ago
Ma'am air cools and condensed as I read.
Amit Kumar
a year ago
but CO2, N2O and NH4 also liqufied with rain water?
These are acidic pollutants which combine and form other compounds...for example sulphur dioxide and nitrogen oxides combine to form acid rain...it is very difficult for these other green house gases to condense and come down or to reduce...so they go very high.. and combine with gases like oxygen, water and other chemicals to form compounds which are acidic pollutants
attractive lessons yrr
Thank you so much ❤️😘😇❤️😘😇
Bittuu J
a year ago
most welcome😘😘
❤️😘😘😘😇
Sorry mam I’m not satisfied your tough about radioactive waste you copy ncrt book not giving details about it and helium is noble gas elements not radioactive
promethium, polonium, astatine, radon, francium, radium, actinum, proactinum, uranium these are radioactive elements
  1. Pillai Sruthi P Kumar BSc. Botany (graduate) Graduate (Visharad) in Hindustani Classical Music. Trained Bharatnatyam Classical Dancer. .A passionate speaker. A civil service aspirant. Please do rate, review and recommend if you genuinely liked my video...it will definitely make a difference in my life... Follow me through unacademy app for future notifications...


  2. Objective This course will complete the remaining three chapters (12th ncert) part by part included in the portion of topic ENVIRONMENT' important for GS section of UPSC exam. The main objective is to explain the concepts as simply as possible, to clear the basics, especially focuses on beginners, and tries to generate an interest among viewers by being more creative. . Source 12th ncert


  3. Target audience UPSC aspirants SSC .CDS .Railway etc.


  4. Radioactive wastes Nuclear energy was initially hailed as a non - polluting way for generating electricity. But, later it was realised that the use of nuclear energy has 2 very serious inherent problems, 1) Accidental leakage 2) Safe disposal of radioactive wastes.


  5. Radiation given off by nuclear waste is extremely damaging to biological organisms, because it causes mutations to occur at a very high rate. High doses of nuclear waste is lethal. Lower doses of nuclear waste causes various disorders. (frequently cancer) Therefore it has to be dealt with caution! After sufficient pre treatment of nuclear wastes, it has been recommended to store them in shielded containers buried with I n the rocks, about 500m deep below the earths surface.


  6. What is GREEN HOUSE EFFECT and GLOBAL WARMING??? Have you ever heard about GREEN HOUSE???


  7. The term green house effect has been derived from a phenomenon that occurs in a greenhouse. A greenhouse (also called a glasshouse) is a structure with walls and roof made mainly of transparent material, such as glass, in which plants requiring regulated climatic conditions are grown. The glass panel of the green house lets the light in but does not allow heat to escape.


  8. It warms up very much. Can u imagine yourself being inside a car that has been parked in the sun for a few hours??? It must be very hot!


  9. 1) Carbon dioxide 2) Methane Are commonly known as green house gases because they are responsibe for the greenhouse effect.


  10. Green house effect is a naturally occurring phenomenon that is responsible for heating of earths surface and atmosphere. .The average temperature at surface of earth is estimated to be about -18 degree Celsius with out green house effect rather than the present average of 15 degree Celsius. Clouds and gases reflect about one fourth of the incoming solar radiation, and absorb some of it but almost half of incoming solar radiation falls on earths surface heating it, while a small proportion is reflected back.