Question

Nuclear energy is currently used in which three kinds of vehicles?

cars, submarines, spacecraft
submarines, ships, spacecraft
spacecraft, airplanes, cars
airplanes, submarines, ships

Answer 1

submarines, ships, spacecraft

Explanation: Nuclear reactors power submarines and many surface ships (e.g., aircraft carriers, icebreakers). Spacecraft use nuclear energy via radioisotope power systems (RTGs) and some small reactors for deep‑space probes and past Soviet satellites. Cars and airplanes are not in regular nuclear use.