Use 400 x in order to study the structure clearly.
Explanation:
Cell structures could be clearly identified when magnify the microscope about 400 x by using a compound microscope. Due to high magnification power of compound microscope, the individual is able to see different structures that are present in cells. while by using lower magnification, the individual is unable to see different structures clearly. So use high magnification in order to study the cell.
You didn't give any statements but, temperature is the measure of the amount of heat in a substance or object. Heat is <span>a form of energy associated with the movement of atoms and molecules in an object. </span>