Which letter help please and thank

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 the new technology can replace outdated, less efficient, machinery.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.

The nile river is referred to as the giver and taker of life. explain what this means.

People who move from place to place for survival is called