How did the Louisiana Purchase affect Spanish Texas? A. It removed France as a threat to control of Mexico.
B. France purchased Louisiana to take over Mexico.
C. Mexico bought all of the land west of the Mississippi territory to expand.
D. United States lost the majority of their land to Mexico in 1803.

Which of the following discoveries would be most likely to cause a scientific paradigm shift? a. the discovery of more rings around uranus b. the discovery of a new pathogenic virus transmitted by mosquitoes c. the discovery that a dormant volcano is showing signs of activity d. the discovery of a new species of salamander in the amazon rainforest e. the discovery that excess heat is radiating from the center of the earth and causing global climate change