When you get into a car with hot black leather in the middle of the summer and it hurts your skin whe you sit this is an example of a} convection b) radiation c) conduction pl hurry and answer 20 points plz

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air