Iwill mark which of the following best describes used nuclear fuel rods? a. used nuclear fuel rods are not radioactive. b. used nuclear fuel rods are useful for industry. c. used nuclear fuel rods remain radioactive for one year. d. used nuclear fuel rods are stored under very strict conditions.

d.Used nuclear fuel rods are stored under very strict conditions.

Explanation:

Used nuclear fuel rods are still radioactive and they generate huge amount f amount. So they are immersed very deep in water, where the water is continuously circulated to remove the excess heat and keep the nuclear fuel rods at safe temperatures. More and more storage pools are being built to house the increasing number of fuel rods.