effect	Autostereogram Bird migration Casimir effect Earth's atmosphere Effect of sun angle on climate Effects of global warming Eye (cyclone) Greenhouse effect Hawking radiation Hovercraft Milankovitch cycles Supply chain management

effective	Alternating current Molecule Water content

effects	Acid rain Analgesic Bird migration Bleeding Blitzkrieg Earthquake Effects of global warming Effects of nuclear explosions Fetal Alcohol Spectrum Disorder Hydrogen peroxide Invasive species Mass media Nuclear weapon

efficiency	Nitrification

effort	Energy

efrika	South Africa

eft	Ubuntu

efua	Kofi Annan