Pollination.
Of course, it's called 'Pollination'
Yes, dried flower petals can typically be purchased at most floral shops. These dried petals are used for various purposes such as potpourri, crafting, and decoration. It's always a good idea to call ahead and confirm availability before visiting the shop.
There are a number of what scientists call a 'cereal grain', uncluding wheat, barley, oats, and so forth.
you can get it in a cream or ointment form at the drug store.
xdddd
Dried wheat is called straw, but technically 'straw' can be any dried cereal grain.
Stalk
A stalk (or some people call it a rib) is one of the long pieces that are attached at the bottom of the head of celery. What most people call a "bunch of celery," the USDA calls a "stalk;" and what most people call a "stalk of celery," they call a "branch." One other term needs describing: "node," which is the point at which the first leaves or leafstems appear on a branch of celery.
a grain of rice
There is no know name for a dried olive.
Most paper has what we call a "grain direction"; it used to be thought that the grain direction was due to paper fibers being aligned in that direction in the paper-making process, but current thinking is that it is more strongly related to what tension the paper was under as it dried. Handmade papers which were dried between felts often do not have a pronounced grain direction. When a paper does have a pronounced grain direction, as most modern machine-made papers do, it will bend or fold more easily with the grain than across it. If you dampen one side of such a paper, it will curl into a tube with the grain. Most commercial papers are sold "grain long" -- that is, the grain runs the long way, from top to bottom on the sheet. (Putting these things together, if you take a sheet of commercial US printer paper and dampen it on one side, it'll curl up with the grain, resulting in an 11-inch-long tube.)
A prune.
A "prune".
The outer covering of the grain is called Husk.
The separate grain from straw is called threshing.
I think it's called stalk