Answer:
Over the last two centuries the dipole strength has been decreasing at a rate of about 6.3% per century. At this rate of decrease, the field would be negligible in about 1600 years. However, this strength is about average for the last 7 thousand years, and the current rate of change is not unusual.
Answer: Niger- landlocked country
Explanation: Chad, Algeria, Libya, and Benin surround it
I think the answer is "State", you probably should quote me on this though...
