GED Science Practice

What type of weaponry does "thermonuclear" specifically refer to?

1. a. Laser

2. b. Biological

3. c. Fusion-based nuclear

4. d. Chemical

The correct answer is: c. Fusion-based nuclear

Thermonuclear weaponry specifically refers to fusion-based nuclear weapons, which utilize the process of nuclear fusion to release energy. This type of weapon, often known as a hydrogen bomb, operates by fusing light atomic nuclei, typically isotopes of hydrogen, at extremely high temperatures to produce a powerful explosion. The unique aspect of thermonuclear weapons lies in their ability to yield far greater energy compared to fission-based nuclear bombs, which only split heavy atomic nuclei. Fusion depends on the conditions of temperature and pressure that can be achieved in these weapons, making them notably more destructive. The other types of weaponry mentioned—such as laser, biological, and chemical—are based on entirely different mechanisms and principles of action, distinguishing them from the fusion process that characterizes thermonuclear weapons.