Хаотическое движение мелких частиц, находящихся в жидкости, называется

Petropavlovsk - the city in the Republic of Kazakhstan, the administrative center of the North Kazakhstan region. The city is situated on the banks of the river Ishim. Located north of the capital of Kazakhstan - Astana, as well as close to the border with Russia, 278 km west of Omsk. The population of 190 thousand. People. Petropavlovsk is located in the north of the Republic of Kazakhstan, at the bifurcation of railways, which favorably affected the city's economy. Petropavlovsk is located in the southwestern part of the West Siberian Lowland, on the right bank of the river Ishim. The climate is continental. Winter frosty and long (more than 5 months), with little snow, summer is relatively hot, with a predominance of clear, dry weather often.