Which of the following statements about nuclear energy is true? a.
Nuclear energy cannot be contained nor controlled.
b.
Nuclear energy is contained in nuclear bonds.
c.
Nuclear energy is less efficient than other energy forms.
d.
All of the above are true.

Which of the following statements best distinguishes a hypothesis from a theory? a. theories are hypotheses that have been proved. b.hypotheses are guesses; theories are correct answers c. hypotheses usually are relatively narrow in scope; theories have broad explanatory power. d. theories are proved to be true; hypotheses are often contradicted by experimental results.