তিতাস গ্যাসে কি আছে?
বাংলাদেশে নিচের কোন তারিখে প্রথম সেলফোন চালু হয়?
ইউনেস্কো কবে সুন্দরবনকে বিশ্ব ঐতিহ্য হিসাবে ঘোষণা করেন ?
When did ‘Bangladesh Coast Guard’ start its operation?
Recently, ‘Amnesty International’ has decided to halt its operation in which country?
Which Bangladeshi Cricketer has been named as the UNICEF’s goodwill ambassador?
In ‘Global Hunger Index’ Bangladesh has recently advanced to which position?
How many women received Nobel Prize this year?
How many agricultural censuses have been conducted in Bangladesh so far?
When is the ‘United Nations Day’ celebrated?
Where is the Meteorological and Geophysical Center of Bangladesh located?
In which one of the following districts, solar energy project was first started in Bangladesh?
The Payra Sea Port is situated in which district?
The Chattogram Sea Port is situated in the bank of …….
‘Blue Economy’ is related to ----------.
Which of the following is the latest river port of Bangladesh?
The coefficient of discharge (Cd) of an orifice varies with ------- number.
When the Mach number is between --------the flow is called supe-sonic flow.
Gypsum consists of ---------.
The meander pattern of a river is developed by -------.