What does it mean to back up regularly? in information technology​

How many people in the world’s economy work in “system d”?

Which sentences describes a cycle of dependency? a. aid harms the local economy creating the need for more aid.b. aid improves infrastructure and creates more wealth and more good infrastructure.c. aid programs become more reliable over time so people can depend on them.d. no answer is correct

This was a 1676 uprising in the virginia colony