Do u think that governments have a more important role in managing cyber security challenges than individuals? explain your ! )

Personally, i don't think so.

The government has also proven to monitor out cyber activities without our consent.
In order to fully protect ourselves from the threat of cyber crime, the best method is to educate ourselves about the safety measures that we could take to avoid it (such as buying a personal VPN or not opening files from unknwon email,etc)

It should be at the center of any map going vertically: the prime meridian, as it passes through greenwich,  england, is considered 0 degrees longitude