[kenya]

what are they?

[loyukfai]

Tons of info. available on the Net, search! : )

EV:
http://www.jackspcs.com/evzones.htm http://www.dpreview.com/learn/?/Glossary/Exposure/Exposure_01.htm

White Balance:
http://www.nikondigital.org/articles/white_balance.htm
http://www.photoxels.com/tutorial_white-balance.html

ISO:
http://www.photoxels.com/tutorial_ISO.html
http://www.dpreview.com/learn/?/key=sensitivity

Never heard of the last term, sorry.