Water and organic materials are necessary for life as we know it.

VOA: special.2010.05.25

"Definitely with something as relevant in our world as genetic research, there are serious moral and ethical concerns and responsibility that is necessary.

VOA: standard.2010.06.09

"The overall forces posture of ISAF and of the Afghan security forces as well is increasing, so we do have the necessary force posture."

VOA: standard.2010.08.04

But what the White House sees as a necessary,thoughtful process to arrive at the best-possible decision on an eight-year conflict is seen as dangerous "dithering" by Republican legislators.

VOA: standard.2009.11.23

He said the United Nations would provide all the necessary administrative, technical and logistical support to the Afghans, as it did for the first round, and would work with the Electoral Complaints Commission and the Independent Election Commission to make the second round transparent and credible.

VOA: standard.2009.10.20

"And we will have to take action in London to make sure that the banking system is reformed, to ensure ourselves that our financial institutions can come to the aid of the poorest countries, and to make sure that we do what is necessary to ensure that there is strong growth and recovery - and particularly jobs in the world economy as a result of the actions that we take,".

VOA: standard.2009.03.25