Your answer to this question is B
Answer:
A landmass formed within a river is known as riverine islands. Riverine islands are formed when rocks and mud gets deposited in the river bed by flowing rivers.
Norway
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What are the statements saying
The area of the Balkan countries is frequently plagued by ethnic conflict that generates tension among the nations. This tension has given away to several small conflicts and the trend continued. The location of the Balkans is strategically very important. I hope the answer helps you.