BBC disinformation reporter Shayan Sardarizadeh talks to Tech Life about the spread of false information online during times of conflict, and how he verifies social media posts. An expert on electric cars answers your questions about EVs. We send our reporter out to sea to find out how tech can help marine conservation. And say hello to some old friends - Sonic the Hedgehog and Super Mario.

(Photo: Man holds a yellow warning symbol in front of a laptop. Credit: Getty Images)