Voiceless plosive and fricative consonants occur in more languages than voiced ones, but voiced types are nonetheless relatively common. How frequent it is for a contrast between voiced and voiceless plosives and fricatives to occur in languages and how such contrasts are distributed will be the focus of this chapter.hese two classes of consonants are the plosives and fricatives. Plosives are the kinds of sounds usually associated with the letters p, t, k; b, d, g, in which air flow from the lungs is interrupted by a complete closure being made in the mouth.
Composites are made up of individual materials referred to as constituent materials. There are two main categories of constituent materials: matrix and reinforcement. At least one portion of each type is required.
A composite number is a positive integer that has a factor other than 1 and itself. For instance, 6 is a composite number because: it is positive; it has a factor other than 1 and itself (both 2 and 3 are factors of 6) If you are familiar with prime numbers, then you should recognize that a positive integer is either prime or composite--these two terms are mutually exclusive. Examples of Composite Numbers. 4 4 is composite because 2 is a factor ; 8 8 is a composite number because it has 4 and 2 as factors ; non examples of Composite Numbers. 5 5 is a not a composite number because its only factors are 1 and itself (5). 5 is, however, a prime number. 2 2 is a not a composite number because its only factors are 1 and itself (2). 2 is, however, a prime number . 2 is also the even number that is not composite. Every other even number is indeed a composite number. 7 7 is a not a composite number because its only factors are 1 and itself (7).