An object will sink if: A. weight of the object < weight of the fluid. B. weight of the object >weight of the fluid C. density of the object < density of the fluid D. density of the object > density of the fluid.

water is used to store them because it would keep the radiation from getting out in the open and causing harm to the workers

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).