Answer:
Pioneers and settlers moved out west for different reasons. Some of them wanted to claim free land for ranching and farming from the government through the Homestead Act. Others came to California during the gold rush to strike it rich. Even others, such as the Mormons, moved west to avoid persecution.
Explanation:
Freedom of<span> expression is </span>one<span> of the most precious rights. Many developing nations struggling for </span>democracy<span>, and good governance, </span>do<span> not support </span>freedom of<span> the </span>press<span> and the </span>media<span> in these </span>countries<span> is often restricted or controlled by government censorship.</span>
In this passage, the type of warfare being described by the author is "chemical warfare".