Difference between blue screen and green screen?

There two different colours

HA HA

No, the difference is that a green screen is more commonly heard of!

But in ICT it is the exact same

Both are differ in colors

You can get details about Green screen backdrop and Blue Screen backdrop from here iOSupplies.com/Photography-backdrops.php">http://www.photostudiOSupplies.com/Photography-backdrops.php