To keep them separate from each other. If they stick together, they can be hard to divide up and you get mis-shaped and different sizes.
a bow
It is most often sisal rope that is wrapped around a cat's scratching post. Sisal rope is safe for cats, and is an excellent material to allow the cat to dig its claws in in order to stretch and excercise muscles, help shed any old layers of claws and is easy to climb on.
A beedie is a thin, often flavoured, Indian cigarette, made from tobacco wrapped in a tendu leaf.
Foliated rocks have layers in them. We often refer to the layers as Banding.
No, essays are assigned more often than research papers. Research papers take much longer to do than essays, so they are usually assigned as major projects.
A collection of papers is often referred to as a "document" or a "file." It can also be called a "portfolio," especially if the papers are organized or curated for a specific purpose.
After the body is wrapped, the head and face were often covered by a mask decorated with facial features similar to those of the deceased.
Often as a gift, wrapped carefully in finest silk, and with a little bow...
Dolma
Sedimentary rocks are the type of rocks that are mostly arranged in layers. The way in which the layers are arranged is commonly called bedding.
The Federalist Papers are often used as a guide to help understand the Framers' original intent when interpreting the Constitution.
Drink and politic and often at the same time.