Final answer:
The term for online government activities such as voting and tax refunds is e-governance, which has transformed interaction between politicians and the public, particularly via social media platforms such as Fa_cebook, Tw_itter, and Y_ouTube.
Step-by-step explanation:
The term for the use of the internet for online voting, online tax refunds, and other online government services is e-governance. E-governance allows for greater access to government services and increases transparency and efficiency. Online platforms have become critical for political campaigns as well. Social media, including platforms like Fa_cebook, Tw_itter, and Yo_uTube, enable politicians to interact with supporters and voters, especially younger demographics. These online tools have revolutionized political engagement and brought new strategies into the campaign and governance processes.