B. would be the correct answer
Let me explain how the critical thinking might work here: remember that critical thinking is the objective analysis and evaluation of an issue in order to form a judgement. So<span> instead of blindly following one side because they seem the smartest it is better to use your head to ask "why" and whether they make the most sense. That is how it can be done</span>
The most obvious reason is that one has to pack up and go because things are not so good at home. Long ago, that probably meant that the climate had changed and made life impossible. It might have become too hot or too cold or too wet, which in turn would have affected not only quality of life but also make survival a shaky proposition. Drought, flood, and temperature changes could certainly push people to move on.
I hope that helped a little.
Answer: Saggital saw.
Explanation:
A saggital saw is a specialised saw used by orthopedic surgeons in bone resection. The blade of a saggital saw oscillates through a small angel, this helps to prevent causing damage to surrounding tissue, this results in the reduction of cutting rate due to short stroke length. A saggital saw oscillates at 10,000- 20,000 per minutes. Saggital bone saw with orbital blade motion is aimed at improving efficiency in cutting.
some of the Incas used camels/lamas to transport the trade across their dirt road is you look on google maps you can see their roads