Science is a systematic enterprise that builds and organizes knowledge on diferent branches. In this knowledge check we have prepared for you a few general knowledge questions of science.
To ensure the authenticity of a document you have to sign the document with the certificate. I will show you how you can easily sign PDF document with the help of simple tool DigiSigner.
Spectacular real time footage of a full moon rising over the Mount Victoria Lookout in Wellington, New Zealand. Treat yourself with a couple of minutes of nature's finest.