পরিচ্ছন্নতা কি?

<style>/*<link href='https://www.blogger.com/dyn-css/authorization.css?targetBlogID=925366957517467307&zx=8527091e-e2ea-48df-9ea9-7938651d6dfe' media='none' onload='if(media!='all')media='all'' rel='stylesheet'/><noscript><link href='https://www.blogger.com/dyn-css/authorization.css?targetBlogID=925366957517467307&zx=8527091e-e2ea-48df-9ea9-7938651d6dfe' rel='stylesheet'/></noscript>
<meta name='google-adsense-platform-account' content='ca-host-pub-1556223355139109'/>
<meta name='google-adsense-platform-domain' content='blogspot.com'/>

<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-1527272568177095&host=ca-host-pub-1556223355139109" crossorigin="anonymous"></script>

<!-- data-ad-client=ca-pub-1527272568177095 -->

<link rel="stylesheet" href="https://fonts.googleapis.com/css2?display=swap&family=Merriweather"></head><body>*/</style>

<style>/*
<script type="text/javascript" src="https://www.blogger.com/static/v1/widgets/4290687098-widgets.js"></script>
<script type='text/javascript'>
window['__wavt'] = 'AOuZoY7mjy5OzOuZs4w3cMjiUr-zUbB9VA:1714461682775';_WidgetManager._Init('//www.blogger.com/rearrange?blogID\x3d925366957517467307','//www.onesigmaeducation.com/2020/09/blog-post_937.html','925366957517467307');
_WidgetManager._SetDataContext([{'name': 'blog', 'data': {'blogId': '925366957517467307', 'title': 'One Sigma Education', 'url': 'https://www.onesigmaeducation.com/2020/09/blog-post_937.html', 'canonicalUrl': 'https://www.onesigmaeducation.com/2020/09/blog-post_937.html', 'homepageUrl': 'https://www.onesigmaeducation.com/', 'searchUrl': 'https://www.onesigmaeducation.com/search', 'canonicalHomepageUrl': 'https://www.onesigmaeducation.com/', 'blogspotFaviconUrl': 'https://www.onesigmaeducation.com/favicon.ico', 'bloggerUrl': 'https://www.blogger.com', 'hasCustomDomain': true, 'httpsEnabled': true, 'enabledCommentProfileImages': true, 'gPlusViewType': 'FILTERED_POSTMOD', 'adultContent': false, 'analyticsAccountNumber': 'G-H611BXYE48', 'analytics4': true, 'encoding': 'UTF-8', 'locale': 'bn', 'localeUnderscoreDelimited': 'bn', 'languageDirection': 'ltr', 'isPrivate': false, 'isMobile': false, 'isMobileRequest': false, 'mobileClass': '', 'isPrivateBlog': false, 'isDynamicViewsAvailable': true, 'feedLinks': '\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22One Sigma Education - Atom\x22 href\x3d\x22https://www.onesigmaeducation.com/feeds/posts/default\x22 /\x3e\n\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/rss+xml\x22 title\x3d\x22One Sigma Education - RSS\x22 href\x3d\x22https://www.onesigmaeducation.com/feeds/posts/default?alt\x3drss\x22 /\x3e\n\x3clink rel\x3d\x22service.post\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22One Sigma Education - Atom\x22 href\x3d\x22https://www.blogger.com/feeds/925366957517467307/posts/default\x22 /\x3e\n\n\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22One Sigma Education - Atom\x22 href\x3d\x22https://www.onesigmaeducation.com/feeds/2709295982199334072/comments/default\x22 /\x3e\n', 'meTag': '', 'adsenseClientId': 'ca-pub-1527272568177095', 'adsenseHostId': 'ca-host-pub-1556223355139109', 'adsenseHasAds': true, 'adsenseAutoAds': true, 'boqCommentIframeForm': true, 'loginRedirectParam': '', 'view': '', 'dynamicViewsCommentsSrc': '//www.blogblog.com/dynamicviews/4224c15c4e7c9321/js/comments.js', 'dynamicViewsScriptSrc': '//www.blogblog.com/dynamicviews/a26ecadc30bb77e6', 'plusOneApiSrc': 'https://apis.google.com/js/platform.js', 'disableGComments': true, 'interstitialAccepted': false, 'sharing': {'platforms': [{'name': '\u09b2\u09bf\u0999\u09cd\u0995 \u09aa\u09be\u09a8', 'key': 'link', 'shareMessage': '\u09b2\u09bf\u0999\u09cd\u0995 \u09aa\u09be\u09a8', 'target': ''}, {'name': 'Facebook', 'key': 'facebook', 'shareMessage': 'Facebook \u098f \u09b6\u09c7\u09df\u09be\u09b0 \u0995\u09b0\u09c1\u09a8', 'target': 'facebook'}, {'name': '\u098f\u099f\u09bf \u09ac\u09cd\u09b2\u0997 \u0995\u09b0\u09c1\u09a8!', 'key': 'blogThis', 'shareMessage': '\u098f\u099f\u09bf \u09ac\u09cd\u09b2\u0997 \u0995\u09b0\u09c1\u09a8!', 'target': 'blog'}, {'name': 'Twitter', 'key': 'twitter', 'shareMessage': 'Twitter \u098f \u09b6\u09c7\u09df\u09be\u09b0 \u0995\u09b0\u09c1\u09a8', 'target': 'twitter'}, {'name': 'Pinterest', 'key': 'pinterest', 'shareMessage': 'Pinterest \u098f \u09b6\u09c7\u09df\u09be\u09b0 \u0995\u09b0\u09c1\u09a8', 'target': 'pinterest'}, {'name': '\u0987\u09ae\u09c7\u09b2', 'key': 'email', 'shareMessage': '\u0987\u09ae\u09c7\u09b2', 'target': 'email'}], 'disableGooglePlus': true, 'googlePlusShareButtonWidth': 0, 'googlePlusBootstrap': '\x3cscript type\x3d\x22text/javascript\x22\x3ewindow.___gcfg \x3d {\x27lang\x27: \x27bn\x27};\x3c/script\x3e'}, 'hasCustomJumpLinkMessage': true, 'jumpLinkMessage': 'Read more \xbb', 'pageType': 'item', 'postId': '2709295982199334072', 'pageName': '\u09aa\u09b0\u09bf\u099a\u09cd\u099b\u09a8\u09cd\u09a8\u09a4\u09be \u0995\u09bf?', 'pageTitle': 'One Sigma Education: \u09aa\u09b0\u09bf\u099a\u09cd\u099b\u09a8\u09cd\u09a8\u09a4\u09be \u0995\u09bf?', 'metaDescription': ''}}, {'name': 'features', 'data': {}}, {'name': 'messages', 'data': {'edit': '\u09b8\u09ae\u09cd\u09aa\u09be\u09a6\u09a8\u09be', 'linkCopiedToClipboard': '\u09b2\u09bf\u0999\u09cd\u0995 \u0995\u09cd\u09b2\u09bf\u09aa\u09ac\u09cb\u09b0\u09cd\u09a1\u09c7 \u0995\u09aa\u09bf \u0995\u09b0\u09be \u09b9\u09df\u09c7\u099b\u09c7!', 'ok': '\u09a0\u09bf\u0995 \u0986\u099b\u09c7', 'postLink': '\u09b2\u09bf\u0999\u09cd\u0995 \u09aa\u09cb\u09b8\u09cd\u099f \u0995\u09b0\u09c1\u09a8'}}, {'name': 'template', 'data': {'name': 'custom', 'localizedName': '\u0995\u09be\u09b8\u09cd\u099f\u09ae', 'isResponsive': true, 'isAlternateRendering': false, 'isCustom': true}}, {'name': 'view', 'data': {'classic': {'name': 'classic', 'url': '?view\x3dclassic'}, 'flipcard': {'name': 'flipcard', 'url': '?view\x3dflipcard'}, 'magazine': {'name': 'magazine', 'url': '?view\x3dmagazine'}, 'mosaic': {'name': 'mosaic', 'url': '?view\x3dmosaic'}, 'sidebar': {'name': 'sidebar', 'url': '?view\x3dsidebar'}, 'snapshot': {'name': 'snapshot', 'url': '?view\x3dsnapshot'}, 'timeslide': {'name': 'timeslide', 'url': '?view\x3dtimeslide'}, 'isMobile': false, 'title': '\u09aa\u09b0\u09bf\u099a\u09cd\u099b\u09a8\u09cd\u09a8\u09a4\u09be \u0995\u09bf?', 'description': '\u098f\u0995\u099f\u09bf \u09a1\u09bf\u099c\u09bf\u099f\u09be\u09b2 \u09aa\u09cd\u09b0\u0995\u09be\u09b6\u09a8\u09be\n(\u09ac\u09bf\u099c\u09cd\u099e\u09be\u09a8, \u09ab\u09bf\u09a8\u09cd\u09af\u09be\u09a8\u09cd\u09b8, \u09ae\u09be\u09b0\u09cd\u0995\u09c7\u099f\u09bf\u0982)', 'url': 'https://www.onesigmaeducation.com/2020/09/blog-post_937.html', 'type': 'item', 'isSingleItem': true, 'isMultipleItems': false, 'isError': false, 'isPage': false, 'isPost': true, 'isHomepage': false, 'isArchive': false, 'isLabelSearch': false, 'postId': 2709295982199334072}}, {'name': 'widgets', 'data': [{'title': 'Upload Image', 'type': 'Image', 'sectionId': 'upload-image', 'id': 'Image10'}, {'title': 'Logo', 'type': 'HTML', 'sectionId': 'header-main', 'id': 'HTML10'}, {'title': 'Icons, Dark, Search', 'type': 'LinkList', 'sectionId': 'header-main', 'id': 'LinkList10'}, {'title': 'Menu', 'type': 'LinkList', 'sectionId': 'header-main', 'id': 'LinkList11'}, {'title': '\u09ac\u09cd\u09b2\u0997 \u09aa\u09cb\u09b8\u09cd\u099f\u0997\u09c1\u09b2\u09bf', 'type': 'Blog', 'sectionId': 'blog-post', 'id': 'Blog1', 'posts': [{'id': '2709295982199334072', 'title': '\u09aa\u09b0\u09bf\u099a\u09cd\u099b\u09a8\u09cd\u09a8\u09a4\u09be \u0995\u09bf?', 'showInlineAds': false}], 'footerBylines': [{'regionName': 'footer1', 'items': [{'name': 'author', 'label': '\u098f\u09b0 \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09aa\u09cb\u09b8\u09cd\u099f \u0995\u09b0\u09be'}, {'name': 'comments', 'label': 'Comment'}, {'name': 'share', 'label': ''}]}, {'regionName': 'footer2', 'items': [{'name': 'labels', 'label': '\u09ac\u09bf\u09b7\u09df\u0983'}]}], 'allBylineItems': [{'name': 'author', 'label': '\u098f\u09b0 \u09a6\u09cd\u09ac\u09be\u09b0\u09be \u09aa\u09cb\u09b8\u09cd\u099f \u0995\u09b0\u09be'}, {'name': 'comments', 'label': 'Comment'}, {'name': 'share', 'label': ''}, {'name': 'labels', 'label': '\u09ac\u09bf\u09b7\u09df\u0983'}]}, {'title': '#Advertisement', 'type': 'HTML', 'sectionId': 'ads-post', 'id': 'HTML13'}, {'title': '#You may also like', 'type': 'HTML', 'sectionId': 'ads-post', 'id': 'HTML15'}, {'title': 'English Article', 'type': 'Label', 'sectionId': 'sidebar-static', 'id': 'Label2'}, {'title': '#A', 'type': 'HTML', 'sectionId': 'sidebar-static', 'id': 'HTML1'}, {'title': 'Popular Posts', 'type': 'PopularPosts', 'sectionId': 'sidebar-static', 'id': 'PopularPosts10', 'posts': [{'title': '\u09aa\u09cd\u09b0\u09be\u09df\u09cb\u0997\u09bf\u0995 \u09b2\u09c7\u0996\u09be \u0995\u09be\u0995\u09c7 \u09ac\u09b2\u09c7? \u09aa\u09cd\u09b0\u09be\u09af\u09bc\u09cb\u0997\u09bf\u0995 \u09b2\u09c7\u0996\u09be\u09b0 \u09ac\u09c8\u09b6\u09bf\u09b7\u09cd\u099f\u09cd\u09af', 'id': 5376821149140777845}, {'title': '\u09ac\u0995\u09cd\u09b0 \u0997\u09a4\u09bf \u0995\u09be\u0995\u09c7 \u09ac\u09b2\u09c7? \u09ac\u09c8\u09b6\u09bf\u09b7\u09cd\u099f\u09cd\u09af, \u09b8\u09ae\u09c0\u0995\u09b0\u09a3, \u09aa\u09cd\u09b0\u09df\u09cb\u0997', 'id': 4627257055564928003}, {'title': '\u09b6\u09bf\u09b6\u09c1 \u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0\u09bf\u0995 \u09b6\u09bf\u0995\u09cd\u09b7\u09be \u0995\u09be\u0995\u09c7 \u09ac\u09b2\u09c7? \u09b6\u09bf\u09b6\u09c1\u0995\u09c7\u09a8\u09cd\u09a6\u09cd\u09b0\u09bf\u0995 \u09b6\u09bf\u0995\u09cd\u09b7\u09be\u09b0 \u09ac\u09c8\u09b6\u09bf\u09b7\u09cd\u099f\u09cd\u09af', 'id': 3675874142196323259}, {'title': '\u09b0\u09c7\u0993\u09df\u09be\u09ae\u09bf\u09b2 \u0995\u09be\u0995\u09c7 \u09ac\u09b2\u09c7? \u09b0\u09c7\u0993\u09af\u09bc\u09be\u09ae\u09bf\u09b2\u09c7\u09b0 \u0989\u09a6\u09cd\u09a6\u09c7\u09b6\u09cd\u09af | \u09b0\u09c7\u0993\u09df\u09be\u09ae\u09bf\u09b2\u09c7\u09b0 \u09a7\u09b0\u09a8', 'id': 8890161965418390619}, {'title': '\u09a8\u09bf\u0983\u09b8\u09b0\u09a3 \u0995\u09be\u0995\u09c7 \u09ac\u09b2\u09c7?', 'id': 1856546029300463762}, {'title': '\u0993\u09b0\u09bf\u09df\u09c7\u09a8\u09cd\u099f\u09c7\u09b6\u09a8 \u0995\u09cd\u09b2\u09be\u09b8 \u0985\u09b0\u09cd\u09a5 \u0995\u09bf?', 'id': 8101224487915877385}]}, {'title': 'Categories', 'type': 'Label', 'sectionId': 'sidebar-static', 'id': 'Label10'}, {'title': '#Recent Post', 'type': 'HTML', 'sectionId': 'sidebar-static', 'id': 'HTML19'}, {'title': 'Our Service', 'type': 'HTML', 'sectionId': 'footer-widget', 'id': 'HTML21'}, {'title': 'One Sigma Education', 'type': 'LinkList', 'sectionId': 'footer-widget', 'id': 'LinkList13'}, {'title': '\u09ac\u09bf\u09b7\u09df\u09b8\u09ae\u09c2\u09b9', 'type': 'Label', 'sectionId': 'footer-widget', 'id': 'Label1'}, {'title': 'Copyright', 'type': 'HTML', 'sectionId': 'copyright', 'id': 'HTML23'}, {'title': 'SVG Icons', 'type': 'HTML', 'sectionId': 'jet-options', 'id': 'HTML24'}]}]);
_WidgetManager._RegisterWidget('_ImageView', new _WidgetInfo('Image10', 'upload-image', document.getElementById('Image10'), {'resize': false}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML10', 'header-main', document.getElementById('HTML10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList10', 'header-main', document.getElementById('LinkList10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList11', 'header-main', document.getElementById('LinkList11'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_BlogView', new _WidgetInfo('Blog1', 'blog-post', document.getElementById('Blog1'), {'cmtInteractionsEnabled': false}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML13', 'ads-post', document.getElementById('HTML13'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML15', 'ads-post', document.getElementById('HTML15'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LabelView', new _WidgetInfo('Label2', 'sidebar-static', document.getElementById('Label2'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML1', 'sidebar-static', document.getElementById('HTML1'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_PopularPostsView', new _WidgetInfo('PopularPosts10', 'sidebar-static', document.getElementById('PopularPosts10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LabelView', new _WidgetInfo('Label10', 'sidebar-static', document.getElementById('Label10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML19', 'sidebar-static', document.getElementById('HTML19'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML21', 'footer-widget', document.getElementById('HTML21'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList13', 'footer-widget', document.getElementById('LinkList13'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LabelView', new _WidgetInfo('Label1', 'footer-widget', document.getElementById('Label1'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML23', 'copyright', document.getElementById('HTML23'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML24', 'jet-options', document.getElementById('HTML24'), {}, 'displayModeFull'));
</script>
</body>*/</style>

English Article

Popular Posts

প্রায়োগিক লেখা কাকে বলে? প্রায়োগিক লেখার বৈশিষ্ট্য

বক্র গতি কাকে বলে? বৈশিষ্ট্য, সমীকরণ, প্রয়োগ

শিশু কেন্দ্রিক শিক্ষা কাকে বলে? শিশুকেন্দ্রিক শিক্ষার বৈশিষ্ট্য

রেওয়ামিল কাকে বলে? রেওয়ামিলের উদ্দেশ্য | রেওয়ামিলের ধরন

নিঃসরণ কাকে বলে?

ওরিয়েন্টেশন ক্লাস অর্থ কি?

Categories