FACTBOX: What will Angola's election mean?

(Reuters) - Below are answers to some questions on Angola's parliamentary election, the first in 16 years, in which the ruling MPLA party appears to have extended its majority.

WHAT RESULTS DO WE HAVE?

Provisional results, based on 50 percent of the vote, suggest that ruling MPLA (Popular Movement for the Liberation of Angola) got more than 80 percent with just over 10 percent for the main opposition party UNITA (National Union for the Total Independence of Angola), from the civil war rebel movement.

It could take many days before full results emerge but it is clear that the MPLA will emerge overwhelmingly dominant.

HOW FAIR WAS THE VOTE?

There is no doubt that the ballot was plagued by massive organizational problems -- voting had to be extended for a second day because it had been so chaotic in many areas on Friday.

Opposition parties also complain that the whole election has been skewed against them from the campaign onwards with the state using its resources to back the MPLA, which has ruled since independence from Portugal in 1975.

UNITA wants results rejected from some areas -- such as the MPLA stronghold of Luanda.

These difficulties have certainly undermined Angolan hopes that the election would set a shining example of polls in Africa after flawed ballots in Kenya and Zimbabwe.

But the MPLA had always been expected to win a major victory.

African observers, including those who condemned Zimbabwe's election, have generally said the vote was clean despite the organizational chaos that often afflicts ballots on the continent.

The head of an EU observer mission has been much more critical, but the group is not expected to give clearer comment until Monday.

WHAT CAN OPPOSITION PARTIES DO?

UNITA and the other parties can complain and UNITA has said it will challenge the legality of the election in the Constitutional Court, but options are limited.

There is certainly anger among some Angolans at the growing disparities of wealth given the booming economy and the fact that most of them live on less than $2 a day, but there is no sign this will translate into major disturbances.

UNITA is no longer an armed force, as it was when it rejected the results of elections in 1992 and Angola plunged back into a civil war that lasted another decade.