In-facepiece dust concentration is changed dozens of times in a matter of minutes due to changes of the size of the gaps between the mask and face. Source. A respirator is a device designed to protect the wearer from inhaling particulate matter, including airborne microrganisms, fumes, vapors, i.e. gases.
Why join Brainly? A community for students. Products of the neolithic culture Steel plows Boats with sails Domesticated dogs Wild figs. the answer would mostly likely be referring to things that actually were of use to the neolithic people and agriculture was the biggest thing making the answer steel plow. anonymous.
In the Neolithic or New Stone Age, ancient central Europeans did not look anything like modern central Europeans, but were closer to Sardinians, or people from the Italian island of Sardinia, Pinhasi told Live Science.inhasi suggested ancient Europeans may have practiced dairying not to drink milk, but to consume milk products such as cheese and yogurt, he said. The processes that make cheese and yogurt break down lactose.