Question

Understanding Ideas<br />1. Answer the following in one statement:<br />1. What is the relation between volume and density?<br />2. How are convection currents formed<br />3. A piece of iron sinks in water while a wooden piece floats. Why is it so?<br />4. Why does a piece of iron float in mercury but sinks in water?<br />II. Define the following terms:<br />1. Volume<br />2. Area<br />3. Density<br />4. Relative density<br />5. Speed<br />III. Answer the following questions in short:<br />1. What is meant by speed? What is its SI unit?<br />2. Explain how the convection currents arise as a result of variations in density<br />gases with temperature.​<br />CAN ANYONE HELP ME OUT WITH THIS8​

Answer 1

what is this can u send me clearly