The items which are most durable as a form of currency (and are also the most portable) would most likely be olive oil. Olive oil has a long shelf time and doesn't require nor take up much space. It is very precious in lower quantities and is therefore a good currency.
In the early 1800s, stores weren't authorized to issue currency themselves.
Answer: the Sahara along Ibn Battuta's route.
<span>The increase in IQ scores over time suggests environmental factors have a strong influence on intelligence.
</span>Our intelligence depends on predisposition and the environment.
Our genetic <span>predisposed is not going to change over time but the type of life
we lead also affects intelligence.</span>
It is greater that 3 due to the fact that the number 4 can go into number 8 two times and can't go into three and 2 can go into 8 4 times and can only go into 3 once
All sources will have some element of bias in them due to the fact that they are products of a specific person's (or specific people's) views. The best ways to deal with bias are 1) to acknowledge the bias and comment on it, 2) to include several sources with differing biases and discuss their differences, or 3) the analyze what the existence of the bias might indicate about the issue.
