Please could someone help me? Select two issues.

The two issues that often contribute to the fall of civilizations are .
natural disasters
problems from within
lack of funds
outside invasions

Like ancient india, ancient china was generally ruled by a dynasty. which of these statements best describes this system of rule? a. rule of the country was passed down by inheritance. o b. rule of the country was voted on by the people. o c. rule of the country was decided by a committee of elders. o d. rule of the country changed hands through violent uprisings. submit

The low and midlevel clouds that look like cotton balls are

When there are advances in technology, such as the personal computer, how might business productivity change? a) productivity is separate from technological advances so there is no impact. the new technology can replace outdated, less efficient, machinery. o) the businesses' products will no longer be demanded. d) manufactured items will be made elsewhere.