What were the causes of the French Revolution?

#1 Social Inequality in France due to the Estates System.

#2 Tax Burden on the Third Estate.

#3 The Rise of the Bourgeoisie.

#4 Ideas put forward by Enlightenment philosophers.

#5 Financial Crisis caused due to Costly Wars.

#6 Drastic Weather and Poor Harvests in the preceding years.

Explanation:

the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.