Answer:
The long-term effects of the remittances will be that the European economies will lose more money and find it hard to balance their economies, while North African societies will have increased spending power.
Explanation:
Remittances are the money that is sent back to their native countries by the migrants that work in another country. Basically, what happens, is the migrants, in this case, North African ones, go to work in a European country, earn a much larger amount of money than what they were able to in their native country, and send a big portion of that money back to their families.
While the intention is good as these people just want to support their families and for them to have a better life, it is devastating for the economies of the host countries. To put it simply, the North African migrants take money out of the economy of their host country, don't spend them in that economy, but move them into the economy of their native country. This can easily rest in the economic collapse of the host countries in the long run, while the North African societies have a positive effect by experiencing increased spending power, though if the economies of the host countries crumble that will vanish over night.