These finishes most often referred to as urethanes or polyurethane's remain on the surface of the wood and form a protective coating. They are generally available in high-gloss, semi-gloss, satin and matte.
So, as you can see, the difference between Congress and Senate is quite simple. Congress is the legislative branch of the government. It has two parts; the Senate and the House of Representatives. So, the Senate is a part of the congress.
A Senator is a member of the US Senate and is elected to six year terms. The Senate is the upper chamber of the US Congress. A Representative is a member of the US House of Representatives and is elected to two year terms. The House is the lower chamber of the US Congress. Congressman is a term often used in place of Representative, although the Senate and House are collectively known as Congress. Congress is a general term used for both senate and House of representatives. THere are 2 Senators from each state who serve 6 year terms. The number of reps from a state depends upon its population. They serve 2 year terms.