Wool

You cant.

Some types of wool must be dry cleaned, for example, most blazers made of wool. There should be labels in garments and products like blankets, indicating method of care. Some wool, can be gently hand washed with mild detergent/soap made especially for wool so it doesn't stip the wool of natural softness. Wool should be air dried, as it will shrink if in heated dryer. Protect wool from chewing insects, and ensure wool is cleaned prior to storage.

Expensive is relative. Some animal fleece -- baby yak, is more rare than other animal fleece -- lamb. Relatively, you'd pay more for yarn spun from baby yak fleece than you would pay for lamb wool.

Fleece-bearing animals grow the raw material for wool on their skin -- much the same way that humans grow hair.

Fleece is shorn from the animal and allowed to dry. This does not hurt the animal that sometimes show relief at being freed from the huge and very heavy winter fleece. There are other methods of collecting fleece.

For example:

Here is what Cashmere.org says how cashmere wool is collected:

"The specialty animal hair fibers are collected during molting seasons when the animals naturally shed their hairs. Goats molt during a several-week period in spring. In China and Mongolia, the down is removed by hand with a coarse comb."

Without endorsement, you can read more, below, about how wool is produced from fleece, in this case sheep fleece.

Marino Lambswool is very light in weight and is very fine as compared to normal lambswool.

Llama wool is just like sheep wool. In the beginning of summer they are shaven from their fur and that fur gets refined (cleaned). When that wool is clean it is then stretched and puffed up a bit. Finally it can shipped off to stores for them to make llama wool sweaters, jackets, you name it!

Merino wool, used in knitting and textile making, can cost a bit more than simpler yarns and fabrics because of its high quality. Some sellers sell Merino wool raw (unspun) for roughly $50 USD per 5-6 lbs. One can purchase Merino wool yarn for a higher price than cotton or polyester yarns at a yarn shop or craft store, but the price will vary.

Because Australia is the leading supplier of wool in the world so it is important as a source of income for Australian people.

Herringbone is a pattern consisting of adjoining vertical rows of slanting lines, any two contiguous lines forming either a V or an inverted V, used in masonry, textiles, embroidery, etc whereas wool is the fiber that is used to construct the herringbone pattern of the fabric.

is wool more absorbent than cotton

Cashmere as we now know it comes the Kashmir goat and some other goats. These are native to Iran, Afghanistan and China and also imported to Australia and New Zealand in large numbers.

fleece

waves or kinks in a wool fiber

Wool is a fiber that is used to make clothes. The composition of wool is, 33 percent keratin, 28 percent grease, 12 percent suint, 26 percent different impurities, and 1 percent mineral water.

It depends on what size the sweater is intended to be and the weight of the yarn to be used. A medium woman's sweater (40") will take about 12 oz fine (sport) wool, 20 oz. medium (worsted), or 28 oz heavy yarn.

A soft warm fabric is flannel

The finest wool in terms of yarn weight is sometimes called thread weight.

nothing it only shrinks when dried

we'll wouldn't you normally get it off of a sheep? it is where wool would be found because of the fact that farmers shave their sheep for that purpose... sometimes you get it from a dog you never know....

You have to get out your sheers. After you have done that, you must appproach a sheep. Then PRESS AND HOLD on the sheep and it will create two blocks of wool. The sheep will regrow it's wool after a short time wgen it eats grass.
I dont think its possible yet on 0.3.0 you need to be in creative mode

You can blend silk with wool when spinning yarn, without reaction.

Scarfs, hats, leg warmers, rugs, gloves, jumpers, carpets, woolen trousers, blankets, cardigans, coats and tights.

Cotton is a botanical product: wool is spun from animal fleece.

England

Wool is made of the protein keratin. Amino acids are the building blocks (monomers) of proteins. Keratins are composed of amino acids, primarily the amino acids glycine and alanine. Given the wide variety of keratins, both alpha and beta, no single chemical composition or monomer can be defined. There are over 20 different amino acids that make up keratins. Cysteine can account for up to 24% of the keratin structure.