People use hot air balloons to rise high above the ground and be pushed by air currents from one place to another. The diagram shows a hot air balloon. A type of chemical reaction, called combustion, takes places between propane and oxygen in the burners.

a. describe a likely result of this chemical reaction that allows a hot air balloon to rise.

b. describe a design feature that limits the distance a hot air balloon can travel. explain your reasoning.

Will give ! what are the advantages and disadvantages of nuclear power? check all that apply. one advantage of nuclear energy is that it does not produce carbon dioxide emissions. storage of nuclear waste is a short-term problem associated with nuclear energy. the problem with uranium mining is that a large quantity of uranium must be extracted to meet energy needs because the energy release from uranium fission is so low. safe operation of a nuclear power plant can be jeopardized by a human mistake.