What kind of thin material? Condoms are pretty thin and they'll keep you safe. You're unlikely to get pregnant doing that, but you still run a risk. Please view the discussion area, if you think you may have an answer for me. theres more details there.
The opening into the larynx is partially covered by the glottis. When someone speaks, it causes the vocal folds to vibrate.
greenland
An aquatint is a form of etching with acid on a plate partially covered with varnish.
Viruses are bits of genetic material, either DNA or RNA, that are covered in a protein sheath.
Greenland
Normally, they're made of some kind of ceramic material substrate covered by a thin layer of a metallic catalyst. At one time, the catalyst was at least partially platinum; I'm not sure if that's still true or not.
Tennis ball is covered by a fibrous fluffy felt.
Yes it should.
The following states have parts covered by major deserts: California Nevada Arizona New Mexico Texas Utah Colorado
yes you can get pregnant from a soft toy with sperm on it.
Maria are covered with dark, loosely packed material, not solid rock.
Collodion