I need 2 answers for questions 1,2,3,and 4

1 why did settlers in California argue over water rights

2 what did rancheros own.

3 how did wealthy families benefit from land grants.

4 to what did general Santa Anna lay siege in San Antonio during the war for Texas independence?

5 who were peninsulares, the creoles, and the mestizos?

6 what was the manifest destiny

7 describe the life of a mountain man

8 what did President James Polk do to bring about Manifest destiny

9 why did the Mormons immigrate to Utah

10 who were the 40 niners?