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.
The Neolithic Revolution reached Europe by way of Greece and the Balkans, beginning in the 7th millennium BC. Some Neolithic communities in southeastern Europe, such as Sesklo in Greece, were living in heavily fortified settlements of 3,000â4,000 people. The Greek Neolithic era ended with the arrival of the Bronze Age from Anatolia and the Near East, by the end of the 28th century BC (early Helladic period).