The times of moonrise and moonset are based on ideal situations. The time of moonrise is calculated based on the fact, when the top part of the moon is above the horizon. The moonset time is considered as the time when the moon is just about to go below the horizon. I hope the answer helps you.
The production of crops and farm animals for sale, usually with the use of modern technology: commercial farming methods.
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.
Our knowledge of a lot of things is most likely to change...because if there is new discoveries and better technology ..then scientist will most likely find out things that they didn't know before....hope this helps!