The correct answer is: C: two and a half years. As a mater of fact, it started in May 1804 and lasted until September 1806. This expedition, also called Corps of Discovery Expedition was the first American expedition to cross what is now the western portion of the United States. Expedition was ordered by president Thomas Jefferson shortly after the Louisiana Purchase in 1803. The goals were to <span>explore and map the newly acquired territory, find a practical route across the Western part of the continent, and establish an American presence in this territory.</span>
The opening of the Panama Canal affected transportation because now, sailors didn't have to sail ALL the way around South America.
Radar images might help to reduce damage from and approaching storm because it help people get ready for an oncoming storm before it causes very much damage. It can also help people get supplies needed to survive in an oncoming storm. If the oncoming storm is hurricane/ tornado like storm it help people and warn them to get to their safe spots for the oncoming storm.
