The Sahara's sand seas (ergs) and dunes are formed by strong desert winds.
O True
False

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Ergs are formed by the action of winds. Sand dunes can migrate and increase their number in certain areas over many thousands of years. Large regions of sand were originally formed when the land was covered by a shallow sea. The action of waves over very long periods of time can erode rocks to form sand.

Explanation:

the correct answer is d. the monetary reserve is a set of funds represented in currency, money or similar, saved as a forecast of possible needs or for legal reasons.

the increase or decrease in the monetary base influences in the increase or decrease of the inflation rate. therefore, the excess of monetary reserve will cause the reduction of inflation.