Sentence examples for an answer is necessary from inspiring English sources
This question, however, is scientifically intriguing and an answer is necessary for a holistic understanding of cancer biology.
That a general answer is necessary is clear from the demands of Hilbert's proof theory, i.e., it is not to be expected that given a formal system of mathematics (or even a single sequence of formulas) one can "see" that it is consistent (or that it cannot be a genuine derivation of an inconsistency) the way we can see, e.g., that 11 + 111 = 111 + 11.
Standing in the master bedroom, looking out at the joggers and skateboarders and sun worshipers, with the Pacific beyond, she said, "You think this is a great view?" No answer was necessary.
Minutes later, no answer was necessary.
In the final round an agreement of 75% of the panel answers was necessary for inclusion of a competency in the final list, which was then regarded as consensus.
However, knowledge on consequences of such an injection is not complete and answers are necessary for accident management in present PWR as well for design and safety analysis of future PWR: is in-vessel corium retention possible?
During times of crisis, quick answers are tempting but complete answers are necessary.
Expansion of answers was necessary for several patients to explain that, although they had answered the question, it was not applicable to them.
For an answer, it is necessary to consider the bungled investigations of the 1960's.
