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বিশ্ব পানি দিবস (World Water Day) কোনটি?

বিশ্ব পানি দিবস (World Water Day) কোনটি? Correct Answer ২২ মার্চ

পানির গুরুত্বকে তুলে ধরার জন্য জাতিসংঘ ১৯৯২ সালে ২২ মার্চকে বিশ্ব পানি দিবস’ পালনের প্রস্তাব গ্রহণ করে। আর ১৯৯৩ সাল থেকে দিবসটি পালিত হচ্ছে

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At an Electronic Data processing unit, five out of the eight program sets P,Q,R,S,T,U,V and W are to be operated daily. On any one day, except for the first day of a month, only three of the program sets must be the ones that were operated on the previous day. The program operating must also satisfy the following conditions: 1. If program P is to be operated on a day, V can’t be operated on that day. 2. If Q is to be operated on a day, T must be one of the programs to be operated after Q. 3. If R is to be operated on a day, V must be one of the programs to be operated after R. 4. The last program to be operated on any day must be either S or U. If the program sets R and W are to be operated on the first day, which of the following could be the other program on that day?
Given below are three quantities named A, B and C. Based on the given information, determine the relation among the three quantities. Quantity A∶  A 30 litre mixture of wine and water has wine and water in the ratio 5∶ 7. How much water must be drawn off so that the ratio of wine and water becomes 25∶ 19? Quantity B∶ A 35 litre mixture of wine and water has wine and water in the ratio 1∶ 3. How much water must be drawn off so that the ratio of wine and water becomes 1.75∶ 3.35? Quantity C∶ A 27 litre mixture of wine and water has wine and water in the ratio 3∶ 2. How much water must be drawn off so that the ratio of wine and water becomes 81∶ 11?
Consider the following statements regarding Save Water Day. 1. On 12 July, the West Bengal government observed Save Water Day across the state to spread the message of water conservation. 2. This was the first-ever Save Water Day observed across West Bengal to spread the message of water conservation. 3. West Bengal has a water conservation programme called 'Jal Dharo Jal Bharo' to prevent floods and provide water during the period of scarcity. 4. The Government of India has set a target to provide 35 lakh households in West Bengal with tap water supply by March 2021. Which of the statements given above is/are correct?
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একটি পানিপূর্ণ কুয়ার গভীরতা 20m ও ব্যাস 2 m. কুয়াটিকে পানি শূণ্য করার জন্য 5 HP এর একটি পাম্প লাগানো হল। অর্ধেক পানি তোলার পর পাম্পটি নষ্ট হয়ে গেল। বাকি পানি তোলার জন্য একই ক্ষমতা সম্পন্ন আর একটি পাম্প লাগানো হল। প্রথম পাম্প দ্বারা সম্পাদিত কাজের পরিমান নির্ণয় কর।(The depth and diameter of a water filled well are 20 m and 2 m respectively. An engine of 5 HP is attached to pump out the water. The pump was ruined after emptying half of the water. Then another pump of same capacity was attached to pump out rest of the water. Determine the work done by first pump.) 
45% players played in 1st world cup out of which 25 players played in only 1st world cup. 57.5% players played in 2nd world cup out of which 45 players played in only 2nd world cup. 72.5% players played in 3rd world cup out of which 110 players played in only 3rd world cup. Find the players who played in both 1st world cup and 2nd world cup but not in 3rd world cup, if total number of players is 400.
Which one of the given responses would be a meaningful order of the following? 1. International Day of Non-Violence 2. World Teachers Day 3. National Unity Day 4. World Environment Day 5. World Braille Day
Which day is observed as International day of Peace Day? (বিশ্ব শান্তি দিবস কোন দিনে পালিত হয়? )
Bottled water is drinking water (e.g., well water, distilled water, mineral water, or spring water) packaged in PET Bottle or Glass Water Bottles. Bottled water is comprehensively regulated by the U.S. Food and Drug Administration (FDA) as a packaged food product. By law, the FDA regulations for bottled water must be at least as stringent as the Environmental Protection Agency standards for tap water. What inference can be drawn from the above passage?
Which day is observed as 'World Human Rights Day'? (কোন দিনে বিশ্ব মানবাধিকার দিবস পালন করা হয়?)