Usually yes, however you will want to double check specific yarns before beginning your project. The best way to test it is to take a ruler and wrap each strand around the ruler continuously for a one inch length (make sure the yarn does not overlap, nor leaves any gaps). You should get the same number of rotations around the ruler for each to prove they are compatible.
It looks like a knitting needle with a crochet hook end instead of a point. It's used for what's called tunisian, afghan or interweave crochet.
The size of a crochet stitch will depend on the size of the yarn and hook that are used to make the stitch. You can check your gauge by trying a few sample stitches before you begin a project.
Your answer depends on the construction of the cotton fabric used in the shirt and its size.
There is no collective noun for the noun 'crochet', in which case a noun that is suitable for the situation can be used, for example a pile of crochet, a bag of crochet, a bazaar of crochet, etc.
Synthetic fibers are often used instead of cotton because they tend to wear better and shrink less. Some common synthetic fibers used in fabrics are polyester, nylon, and acrylic.
polyester & other man made blends
I reckon because it can breathe
It depends on the size of yarn used. For worsted weight size 4 yarn, it reccommends to use a size g or h hook. Check the yarn cover to see which size hook is reccommended for the yarn.
The basic stitches used to crochet are: slip stitch chain single crochet half double crochet double crochet treble crochet double treble shell pop corn
It's called a locker hook and is used for weaving, not crochet. But it sure does look like a crochet hook.
Narrow bands of crochet always have a tendency to curl up, it's the nature of the stitches and the yarn used. In order for it to straighten out you will have to make the object wider, or add more rows of crochet on to your original chain. It should start to curl up less and less the more rows you make.
Work one double crochet in the chain after the one you've just used. Then work another double crochet into the SAME chain where you worked that first double crochet.