Answer:
A law can no longer be in effect if Congress passes the law saying it has no effect.
When people are treated poorly based on their race or skin color
Answer:
Right choice is:
b. to collect scientific and practical information of the land.
Explanation:
The main purpose of the expedition was to explore and map the new territory recently acquired, the Louisiana Purchase, find a route to the West and the Pacific and establish an American presence before Britain or other powers would do it. The secondary goals were scientific and economic: to get to know the flaura and the fauna and make trade contacts with the Indians.
