Lubering is the felling, or cutting of trees, of economic trees in a forest. This can be used in domestic, industrial, or commerce purposes. This also provides positive and negative consequences. For example, for the positives, lubering can increase economic activities for human but on the other hand, for the negative, it can impact the environment and contribute to the loss of habitat by wildlife.
The answer to this question is C. In the 1800s mexico and the United states fought for territory near Texas, and eventually won after many engagements, such as the Alamo. Hope I helped.