High tide weird question

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter

The substances that are necessary for producing of certain hormones and that store and transport vitamins

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?