Question

3. How is Plimsoll line a safety measure for ships?<br />4. How does the density of a substance vary with change in temperature?<br />5. The density of a substance is 23 g/cm!. What do you understand by this statement?<br />Answer the following questions in detail:<br />1 How is the relative density of a liquid determined by a density bottle?<br />2 Explain the procedure of finding the density of an unknown liquid using a relative density<br />botte<br />3. Explain briefly the formation of convection currents in a fluid.<br />State some of the practical applications of relative density.<br />xplain the variation of density in solids, liquids and gases due to the change in temperature.<br />Measurement​<br />CAN ANYONE HELP ME OUT WITH THIS​

Answer 1

what is this i csnt understand anything