The Embargo Act impacted American trade by.. (1) ending all trade with Britain and France.
(2) increasing US trade with foreign countries.
(3) increasing taxes US merchants paid to trade in other places.
(4) allowing only British ships to trade in American ports.

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.

the authority to tax.