Pressure treated lumber is lumber that has undergone a process that forces chemical preservatives into the wood. The wood is placed inside a closed cylinder. Then vacuum pressure is applied to force the preservatives into the wood. These preservatives help protect the wood from any termites or other such insects.
exists and is an alternate of. Merge this question into. Split and merge into it. Answer by SummerMaple. Confidence votes 30.3K. The larynx is where the vocal cords are located. The cords tighten and relax to change the pitch of the voice. Actual sounds are produced by the mouth and nose by changing the shape and the speed of the air as it passes through the chambers. In societies that incorporate non-tonal sounds into their language (such as certain cultures in Africa that utilize clicks), these sounds are produced by the tongue.
The Larynx The larynx is an organ in your throat. Itâs at the front of your neck. This organ is about 2 inches (5 centimeters) wide, which is about the size of a lime. The larynx is also called the voice box. It has two bands of muscle that form the vocal cords. The cartilage at the front of the larynx is sometimes called the Adamâs apple. The larynx has three main parts: â¢ Top: The top part of the larynx is the supraglottis. â¢ Middle: The middle part is the glottis. Your vocal cords are in this part.