Step migration is when people migrate over small distances multiple times to eventually get to their final destination.
D paleo-indians domesticated their plants and animals as a source of food and B) peleo-indians didn't change their ways after the Ice Age ended
The answer about empathy and cooperation are inevitable in diversified country like Nepal, is explained below.
Explanation:
When people understand and share the feelings of other people, then this ability of the people is called as empathy.
When people work together and help each other towards a combined end, this is called as cooperation.
So in a country like Nepal, which is full of people from different cultures, religions, ethnicity, etc, the feelings of being empathetic and cooperative with each other is inevitable. People have to interact and cooperate with each other in every field of life in such countries. So they can't ignore the importance of being empathetic and cooperative.
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Many African countries are anyway struggling with money, and receiving a lot of foreign help. Having debt only makes their financial situation worse and increases the need for foreign help. So in a way, richer countries give money to African countries so that the African countries can give it back- this is not optimal.
Another reason is that a stronger Africa could buy more goods from other countries, and the economy of other countries would increase, too.