Which is the principle of Learning Environment study?

Indian Railways Research and Training Centre is situated in -

Which of the following processes is the dominant reason for desertificatior in  Rajasthan? 

Where can we see the values of Indian democracy in the constitution? 

Which of the following scientists was associated with the first nuclear explosion in Pokharan?

Which of the following feature will restore your computer's state including system files, installed applications, Windows Registry and system settings back to the last time ( Revert) is used to?

Which one is a characteristic of BWhw climatic region of Koppen's classification of climate?

The President can proclaim emergency on the written advice of the-