Industry has lowered its labor costs througha. the use of tablet computers. b. advances in robotics. c. faster communications. d. just-in-time manufacturing. its b

The correct answer is: B. Advances in robotics

Robots over the next decade are expected to become more affordable, more advanced and more prominent in the labor market as they improve productivity and cut costs. U.S. labor costs could shrink by 22 percent if machines complete only 25 percent of the tasks they're capable of performing. And while reduced labor costs are good for business owners, productivity increases could come at the expense of low-skill jobs.

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.

whats the question? im not quite understanding your question.