Lights consists of energy waves which are often grouped together in a_?

There’s only one game mode that stars with the letter ‘e’ in cs: go. which of the options below is it?

How is a wan different than a lan? both connect computers, but only wan users don’t need the same operating system. both are peer-to-peer networks, but only a wan requires networking hardware. both network computers, but only a wan can cover larger geographical ranges. both connect computers to the internet, but only wan connects to the cloud.

Why are weather forecasts more reliable now compared of hundred years ago