He means trading with outside the country foreign markets that will provide better goods and produce more revenue.
Essentially the Scientific Revolution contributed to the progress, reason, andfraternal aspects of the Enlightenment. Through debunking long held superstitious / religious beliefs, producing a secular body of reasoned work, and by creating a network of learned fraternal Scientific Societies, who not only collaborated in theoretical fields, but in the application of new discoveries to practical and commercial purposes, along with offering libraries of the latest Scientific papers and lecturers. Enabling and funding further investigation, in a meritocratic circle eg. the Lunar Society of Birmingham.
Worth noting, the Agricultural revolution, which was applying scientific method to food production, was also vital as its gains freed manpower for the new urban mines and factories.
(1) sign or veto bills passed by Congress
Answer:
Some material is simply propaganda, intentionally containing little or no truth. Even if authentic, the meaning of documents regarding the past can be highly unclear to any modern investigator, or can conflict with other sources. These factors and others result in quite a bit of uncertainty about historical accounts.