Answer is A
The map shows how iron was moved across Africa there for the diffusion of technology seems like the right answer
Oceans being joined together helps me understand the impact of a river being dried up because rivers lead to the ocean, once a river is dried up not only does that cut off a stream to the ocean it also affects animals. There’s many animals who live by water or live in water, and without it they wouldn’t be able to thrive. For example, some animals might stay near water to catch fish to eat and survive. Without the water, there are no fish.. but without the fish, that animal that was reliant on the fish wouldn’t be able to survive. A river drying up could also affect humans who live by water, and who use the stream as a water source. It could affect fisherman’s businesses and even food source if there’s no water. Oceans being conjoined together also help me understand the impact because if the Pacific Ocean just randomly dried up, it would affect the rest. The same as a river, if too many dry up it could eventually effect the ocean itself.
Originally for decades there was a separatist or national movement against the formerly Soviet Union and it's control through communism. Military endeavors by the Russian government to break up the separatist or national movement which brought about Independence for Chechnya by way of the 1996 peace agreement. An invasion by the International Islamic Brigade in 1999, which is likened to Islamic Terrorist groups like Al-Qaeda and Russia's victory in stopping such a movement, brought on the second Chechen war. The war lasted over nine years and the Russians succeeded by putting Chechnya under rule of Moscow. It is should be noted that due to the Islamic insurgency into that area, is the cause of many terrorist acts against the Russian people.
The correct answer would be : erosion
I hope that this helps you !