Which event or development caused the United States and Spain to come into conflict over Texas in the early 1800s?

Hye-seung is giving a speech on turtles, specifically on the need to protect the turtle population in the pacific ocean due to rising ocean temperatures. the general purpose of her speech is likely:

Which choice best describes the general trend for the countries shown, for the period 2008 - 2010?

Why does the supreme court only listen to a small percentage of cases every year?