If the temperature of the outer core is more than 5000 Celsius and Outer core is in liquid form then the temperature of inner core must be more than the outer core but the inner core is solid why it is so

The force of gravitational attraction between the sun and venus could be increased by reduseing which of the followinga. the distance between the sun and venus b. the period of rotation of the sunc. the mass of the sun and venusd the speed of the orbit of venus