Answer:
a - the treaty that ended the us Mexican war
Explanation:
The Treaty of Guadalupe Hidalgo, signed on February 2, 1848, ended the Mexican-American War in favor of the United States. Mexico also gave up all claims to Texas and recognized the Rio Grande as America's southern boundary
Protect the right to freedom
Answer:
Whether humankind can do anything to stop climate change.
Explanation:
hope it helps! got it online
Congress attempt to provide a legal basis for its authority