Which of the following is not a potential problem of using more nuclear energy?
A. The cost of nuclear fuel is very low
B. Spent nuclear fuel is dangerous if handled wrong
C. Cost to build a nuclear plant is very high
D. Most nuclear plants can only operate for 30 – 40 years.

a. theta waves. this is because the person is in a light sleep which means the brain waves would show these kind of waves.

c. is the answer : ) (you may punch me if im wrong lol)

lol   that was   funny : >

the policy of appeasement influenced the beginning of ww2 because hitler gave the other countrys chocies but after they choose to try and appease hitler to not invade their country but he still invaded them.