<span>It took place near Manassas, Virginia on July 21, 1861. It was called the First Battle of Bull Run or the First Manassas. At this battle, the union army lost to the confederates. This was the battle when they realized that the war was really starting. They realized that is was essentially "game on" and nobody would go down without a fight.</span>
<span>First a science fair requires projects. They should be a diverse group of experiments and demonstrations. Second, the students should be present and close by their project so they can explain their work. The third important component of a successful Science Fair is community mentors to act as judges. The judges should interact with the students, make fair decisions, and spark interest in science.</span>
Answer: 1650 according to 3 sources
Explanation:
1. Embargo - An official ban or trade or other commercial activity with a particular country.
2. Tariff - Tax on imports.
3. Economic growth - The ability of the economy to increase the production of goods and services.
4. Specialization - Workers concentrate on producing those goods and services for which they have a competitive advantage.
5. Currency exchange rate - The price of one country's currency expressed in terms of another country's currency.
6. Quota - Limitation on imports.
7. Voluntary free trade - An ideal feature of a global economy; it is when each party involved in a trade expects to gain from the trade.
8. Trade barriers - Restrictions placed on trade, for example tariffs and quotas.
It should be noted that Persistent repetitive thoughts that cannot be controlled are known as Obsessive-compulsive disorder.
<h3>What is Obsessive-compulsive disorder?</h3>
Obsessive-compulsive disorder can be regarded as a disorder that contains pattern of unwanted thoughts as well as fears.
And this can make the one suffering from it to repetitive behaviors (compulsions).
Learn more about Obsessive-compulsive disorder at:
brainly.com/question/7064915