Answer: Ideas moved from place to place as Islam spread through conquest and trade.
Explanation: This is called cultural diffusion, during that time period a lot of cultural diffusion took place, which allowed knowledge from different cultures to spread all over the world.
Answer:
A. Environmental.
Explanation:
There have been changes in the environment. Because of climate factors, very likely because of global warming, there´s a drought and temperatures may be higher. These changes have affected the soil´s fertility. Crops are not as good as they used to be or it´s impossible to cultivate. So, local families are forced to migrate.
