Greenland today is critically dependent on fishing and fish exports; the shrimp fishery is by far the largest income earner.
Its most valuable economic asset is its work force, which is better educated and disciplined than in most of the former Soviet republics.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "periodic cyclones" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.