<span>- Hard to travel in the north due to Sahara desert. People had to follow the coastline to get past the deserts.
- Trade mainly along Nile and Niger rivers to transport goods</span>
The answer is True
The researcher spends a lot of time trying to get the conditions to do his work. You need to get money, equipment, assistants, ethics committee approval, among others. All to start the data collection work. After collection, he spends a great deal of time analyzing the data and then interpreting it. He then compares the data that was obtained with what already exists in the literature, whether it is data that supports his work or data that may conflict with his own. Finally, he writes all this and sends it to a magazine.
