Answer:
paleoecology
Explanation:
because because they study fossil of animals and plants. If it's an old rat's nest it will most likely contain fossils.
The Native Americans had to move because they took over land.
They knew that people were going to change, and that the Constitution had to change with them. In order to be a working document, it had to be changed to reflect what was going on. At the same time they wanted changes to be taken seriously so they made it difficult to change things.
Answer:
cities like Timbuktu and Gao into important cultural centers. He also brought architects from the Middle East and across Africa to design new buildings for his cities. Mansa Musa turned the kingdom of Mali into a sophisticated center of learning in the Islamic world.
