I NEED HELP RQ FOR THESE ANSWERS PLEASE

What is one example of trench warfare ?

Wich part of the declaration of independence acts as an implied plan of action in that it lists laws and practices to be changed

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 the new technology can replace outdated, less efficient, machinery.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