Explanation:
hope this helps you dear friend.
They are part of what is called the secondary sector. A secondary sector takes the output of the primary sector (mines, etc) and turns them into ready-to-sell products, oftern producing waste in the process, as not all produce of the primary sector can be used.
it’s france, britain, and russia
Answer:
A huge dust storm that caused dry soil to blow, creating a 'black blizzard'