Questions

National Anthem of Bangladesh 'Amar Sonar Bangla' was written by

Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it.

A place where astronomical observations are made

Which of the following is most important for absorption of heat radiated from the Sun as well as from the Earth?

Terylene is a condensation polymer of ethylene glycol and which acid?

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.
Corruption is a standing hindrance _____ the nation's development.

In the following question, a word has been written in four different ways out of which only one is correctly spelt. Select the correctly spelt word.

The focal length of a concave mirror with a radius of curvature of 20.0 cm is :

The Chairman of the National Disaster Management Authority (NDMA) is