In what way do nuclear explosions differ from conventional weapons, except for which statement?

The statement regarding thermal radiation being harmful only at close distances is not accurate when discussing nuclear explosions. Nuclear explosions produce immense amounts of thermal radiation that can cause severe burns and ignite materials at considerable distances from the detonation point. While the intensity of thermal radiation decreases with distance, the hazardous effects can still extend far beyond the immediate vicinity of the blast.

In contrast, the other statements accurately highlight the unique characteristics of nuclear explosions:

• The first statement emphasizes that nuclear devices can release energy levels far exceeding those of conventional explosives, demonstrating a fundamentally different power scale.

• The second statement correctly identifies that a significant part of the energy released in a nuclear explosion manifests as thermal radiation, which is a major factor in the destruction caused by such blasts.

• The last statement discusses the electromagnetic pulse (EMP) generated by a nuclear detonation, which is a distinctive effect absent in conventional weapons. The EMP can disrupt electronic devices and communication systems over vast areas, further illustrating the unique nature of nuclear reactions.

These differences underline why nuclear weapons represent a separate class of weapons with distinct operational and strategic considerations compared to conventional arms.