1) Quantum Chromodynamics
Strong interactions are described by Quantum Chromodinamics.
Can you shortly characterise their structure, comparing/contrasting
with QED. 

2) What were experimental evidence from e+e- colliders, eg. CELLO
confirming prodictions of QCD for the differencial cross-sections,
ratios of cross-sections, etc.

3) QCD predictions provide an excellent description of the dijet
data at Tevatron p pbar collider and of running alpha_s.
Could you expand those statements.