Sugarcane
Production of iron was a primary occupation since it proved quite profitable. Many industries that were developing at that time required the use of iron products. This made iron production a lucrative venture.
No, he proved lightning is a form of electricity
Benjamin Franklin proved the existence of electricity.
It proved that the Articles of Confederation were weak.
Carl Louis Ferdinand von Lindemann proved in 1882 that pi is transcendental.
Gunrunning
The United States established submarine bases in the Caribbean before and during WWII. The Caribbean islands proved vital to the protection of the United States.
The United States economy before the war was extremely prosperous as the slave trade proved to be a lucrative business.
The past tense of "prove" is "proved" in British English and "proven" in American English.
It proved to be the foundation for American liberties.
The past participle of 'prove' is 'proved'. The form 'proven' is also found and is acceptable. It is used particularly in Scots law, in the verdict 'not proven'.
The past tense of "proof" is "proved" or "proven." Both forms are acceptable, but "proved" is more commonly used in British English while "proven" is more common in American English.
It means 'which was to be demonstrated'; in other words, 'we have proved what we set out to prove'.
no
John Cabot was an Italian who was the captian of the first English ship to cross the Atlantic. He proved that there was two continents between Europe and Asia. He named Newfoundland.
Production of iron was a primary occupation since it proved quite profitable. Many industries that were developing at that time required the use of iron products. This made iron production a lucrative venture.
that method of teaching is great and has proved to be a great asset ...