Disposal of Radioactive Waste

Q. Which of these following methods is the most suitable for disposal of nuclear waste?

1. Bury the waste within rocks deep below Earth's surface
2. Shoot the waste into space
3. Bury the waste under Antarctic ice-cover
4. Dump the waste within rocks under ocean

Q. Which of these methods is employed to dispose radioactive waste?

1. Recycling of radioactive isotopes
2. Temporary storage of waste to allow natural decay
3. Geologic disposal underground to reduce radioactivity to natural levels
4. All of these