Yellow phlegm is normally a sign of an infection, or a case of the common cold. Greenish or brownish phlegm is nearly always a sign of infection. Greenish or rusty phlegm or phlegm with rusty spots can also be a sign of pneumonia. Coughing up brown phlegm is also a common symptom of excessive smoking.
A flowboard is a variation on a skateboard, combining aspects of surfing, skating and snowboarding.
A particle board is a kind of manufactured wood product that is ideal for countertops because it is stable, lightweight and inexpensive. The board is reasonably friendly to the environment since it is manufactured from recycled wood and wood scraps that are shredded. A type of resin is use as binding material. Particle boards are actually denser than hardwoods and are less expensive, but it is not as strong or moisture-resistant.