.................Spain...................
Answer:
OD
Explanation:
i think it is human system . and it will help u friend
The Louisiana Purchase changed the US because it doubled the size of the then US. Thomas Jefferson was eager for Lewis and Clark to explore the West because he wanted to find new places for the colonist to live and people to settle there before anyone else did.
They had to keep moving to follow the animals that were searching for water in rhe desertt & they needed water for themselves