Answer: chief executive
Explanation:
The chairmen of all the Panchayat Samitis under the district are the ex officio members of Zila Parishad
in the three months to February 2017 there were 33.4 million people in the UK labour force and 1.56 million people classed as unemployed. These figures gave an official UK unemployment rate of 4.7%.
A soda in a styrofoam cup with a lid, coffee in a thermos with the lid closed is the isolated systems.
<h3><u>Explanation:
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Styrofoam cups and thermos containers are typical examples of containers that don’t allow the transfer of heat energy in their environments. A system is said to be isolated if it doesn’t allow heat exchange with its surroundings. A Styrofoam cup with a lid keeps the coffee hot due to its insulation properties.
Thermos container is a more effective insulator since it is made of double-walled container to lock either heat or cold inside. Insulators create effective isolated system depending on the materials they were made from. A completely isolated system does exist.
