Dear Meritnation Expertts ,,, mujhe 3 nibandh chahiye inn vishay pe... asha hai app meri maddat karenge.

1) vigyan vardan ya abhishap

2) anushashan ka mahatvao

3) paryavaran ka mahatvao.
) 

Follow the links for your answer

1) https://www.meritnation.com/discuss/question/1622828
2) https://www.meritnation.com/ask-answer/question/want-essay-on-vidyarthiyon-main-anushasan-ka-mahatva-pls-.../%E0%A4%A8%E0%A4%BF%E0%A4%AC%E0%A4%82%E0%A4%A7-%E0%A4%B8%E0%A4%82%E0%A4%97%E0%A5%8D%E0%A4%B0%E0%A4%B9/3839440
or
https://www.meritnation.com/ask-answer/question/can-u-pls-help-me-with-an-essay-on-anushasan-ka-mahatva-.../%E0%A4%85%E0%A4%AA%E0%A4%A0%E0%A4%BF%E0%A4%A4-%E0%A4%97%E0%A4%A6%E0%A5%8D%E0%A4%AF%E0%A4%BE%E0%A4%82%E0%A4%B6/1555955
3) https://www.meritnation.com/ask-answer/question/a-paragraph-on-sainik-ka-jeevan-,-paryavaran-ka-mahatv,-p.../%E0%A4%AE%E0%A5%81%E0%A4%B9%E0%A4%BE%E0%A4%B5%E0%A4%B0%E0%A5%87/3391512
or
https://www.meritnation.com/ask-answer/question/essay-on-van-jungle-aur-hamara-paryavaran/hindi/1023868
Hope this helps...plz thumbs up!!