C. Bone is a dry non-living supporting structure
The 3 nations signed the NAFTA to lift all trade embargoes between the 3 countries. This meant free trade, without them being taxed for bringing their goods into the country
hope this helps
This depends on the system, the kind of information they need, etc...
In the most democratic countries, government sites might prove most reliable. In other, independent journalists might be better. In a way, it's almost impossible to be sure your information isn't biased.... the best is if you know who wrote it and what their agenda is: if they news is left-wing and what they report is not very left-wing, then it's perhaps reliable.
I do believe the early Egyptians, being as smart as they where used a interesting method of a sundial. It caught the suns shadow and they where able to use it to tell the time.
