Question

1. In any nuclear reaction, nuclei are transformed in some way.

True
False
2. Two fissionable substances commonly used in nuclear reactors and nuclear weapons include uranium-235 and plutonium-239.

True
False
3. Fission reactions can be controlled; thus, they are used to create energy and electricity. But fusion reactions are uncontrollable and require too much energy for economical use.

True
False
4. Fission reactions occur at such high temperatures in the Sun that the Sun appears to glow.

True
False

Answer 1

1. True
2. Not sure about plutonium, but it's most likely true.
3. True, in present day.
4. False, fusion, which takes place in the sun, occurs at extremely high temperatures.

Answer 2

Rogue's answers are right , plutonium can defiantly be used
TTTF